10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549
FORM 10-Q
(MARK ONE)
(x)    Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
For the quarterly period ended December 31, 2011
or
(  )   Transition Report Pursuant to Section 13 or 15(d) of the Securities and Exchange Act of 1934    (No Fee Required)
Commission File No. 0-12718
SUPERTEX, INC.
(Exact name of Registrant as specified in its Charter)
California	94-2328535
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification #)
1235 Bordeaux Drive
Sunnyvale, California 94089
(Address of principal executive offices)
Registrant's Telephone Number, Including Area Code:  (408) 222-8888
Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.                                Yes  [ X ]                                                                            No  [    ]
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (Section 229.405 of this chapter) during the preceding 12 months (or for shorter period that the registrant was required to submit and post such files).                               Yes  [ X ]                                       No  [   ]
Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Act). Check one. Large accelerated filer [  ] Accelerated filer [ X ] Non-accelerated filer [  ] Smaller Reporting Company[  ]
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes  [   ]                                                                                No  [ X ]
Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practicable date.
Class	Outstanding on February 4, 2012
Common Stock, no par value	12,061,218
Exhibit index is on Page 37
Total number of pages: 38

1

SUPERTEX, INC.

QUARTERLY REPORT - FORM 10Q

Table of Contents		Page No.
	PART I - FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited)
	Condensed Consolidated Statements of Income	3
	Condensed Consolidated Balance Sheets	4
	Condensed Consolidated Statements of Cash Flows	5
	Notes to Condensed Consolidated Financial Statements	6
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	22
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	33
Item 4.	Controls and Procedures	34
	PART II - OTHER INFORMATION
Item 1.	Legal Proceedings	35
Item 1A.	Risk Factors	35
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	36
Item 3.	Defaults Upon Senior Securities	36
Item 4.	Removed and Reserved	36
Item 5.	Other Information	36
Item 6.	Exhibits	37
Signature		38

2

PART I - FINANCIAL INFORMATION

Item 1.  Financial Statements

SUPERTEX, INC.

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(unaudited)

(in thousands, except per share amounts)

	Three Months Ended					Nine Months Ended
	December 31, 2011			January 1, 2011		December 31, 2011			January 1, 2011
Net sales	$	14,066		$	19,675	$	49,084		$	65,189
Cost of sales		8,708			9,341		26,132			29,121
Gross profit		5,358			10,334		22,952			36,068
Research and development		3,480			3,692		10,514			10,823
Selling, general and administrative		3,269			3,501		9,226			10,673
Total operating expenses		6,749			7,193		19,740			21,496
(Loss) income from operations		(1,391	)		3,141		3,212			14,572
Interest income		251			172		737			589
Other income (expense), net		533			273		(170	)		490
(Loss) income before provision for income taxes		(607	)		3,586		3,779			15,651
(Benefit from) provision for income taxes		(703	)		726		303			4,861
Net income	$	96		$	2,860	$	3,476		$	10,790
Net income per share
Basic	$	0.01		$	0.22	$	0.28		$	0.83
Diluted	$	0.01		$	0.22	$	0.28		$	0.83
Shares used in per share computation:
Basic		12,063			13,036		12,439			12,995
Diluted		12,066			13,079		12,450			13,054

The accompanying Notes are an integral part of these Unaudited Condensed Consolidated Financial Statements.

3

SUPERTEX, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(unaudited, in thousands)

	December 31, 2011			April 2, 2011
ASSETS
Current Assets:
Cash and cash equivalents	$	16,842		$	23,962
Short-term investments		112,351			109,760
Trade accounts receivable, net		6,441			8,100
Inventories		16,882			20,600
Prepaid expenses and other current assets		5,602			2,975
Prepaid income taxes		5,373			6,461
Deferred income taxes		7,278			7,228
Total current assets		170,769			179,086
Long-term investments		26,000			30,200
Property, plant and equipment, net		5,162			5,708
Other assets		563			622
Long-term deferred income taxes		4,905			4,980
Total assets	$	207,399		$	220,596
LIABILITIES AND SHAREHOLDERS' EQUITY
Current Liabilities:
Trade accounts payable	$	2,640		$	3,283
Accrued salaries and employee benefits		11,823			12,430
Other accrued liabilities		665			772
Deferred revenue		2,545			3,664
Income taxes payable		134			2,264
Total current liabilities		17,807			22,413
Income taxes payable, noncurrent		4,943			4,974
Other accrued liabilities, noncurrent		295			290
Total liabilities		23,045			27,677
Commitments and contingencies (Note 9)
Shareholders' Equity:
Preferred stock, no par value -- 10,000 shares authorized; none issued and outstanding		-			-
Common stock, no par value -- 30,000 shares authorized; issued and outstanding 12,056 shares as of December 31, 2011 and 12,808 shares as of April 2, 2011		67,623			68,499
Accumulated other comprehensive loss		(1,456	)		(1,683	)
Retained earnings		118,187			126,103
Total shareholders' equity		184,354			192,919
Total liabilities and shareholders' equity	$	207,399		$	220,596

The accompanying Notes are an integral part of these Unaudited Condensed Consolidated Financial Statements.

4

SUPERTEX, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited, in thousands)

	Nine Months Ended
	December 31, 2011			January 1, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	3,476		$	10,790
Non-cash adjustments to net income:
Depreciation and amortization		1,463			1,718
Provision for doubtful accounts and sales returns		8			467
Provision for excess and obsolete inventories		2,946			694
Deferred income taxes		(99	)		734
Stock-based compensation		2,243			2,372
Tax benefit related to stock-based compensation plans		6			106
Excess tax benefit related to stock-based compensation		-			(5	)
Unrealized loss (gain) from short-term investments, categorized as trading		312			(457	)
Amortization of premium on short-term investments		2,266			1,554
Loss on disposal of property, plant and equipment		1			1
Changes in operating assets and liabilities:
Trade accounts receivable		1,651			(342	)
Inventories		772			(5,308	)
Prepaid expenses and other assets		(2,568	)		111
Prepaid income taxes		1,088			(1,780	)
Trade accounts payable and accrued expenses		(1,492	)		829
Deferred revenue		(1,119	)		(137	)
Income taxes payable		(2,161	)		2,790
Net cash provided by operating activities		8,793			14,137
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property, plant and equipment		(778	)		(876	)
Purchases of investments		(129,217	)		(99,261	)
Sales of investments		67,181			17,374
Maturities and redemptions of investments		61,418			80,945
Net cash (used in) investing activities		(1,396	)		(1,818	)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from exercise of stock options and employee stock purchase plan		1,380			2,277
Stock repurchases		(15,897	)		-
Excess tax benefit related to stock-based compensation		-			5
Net cash (used in) provided by financing activities		(14,517	)		2,282
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS		(7,120	)		14,601
CASH AND CASH EQUIVALENTS:
Beginning of period		23,962			10,153
End of period	$	16,842		$	24,754
Supplemental cash flow disclosures:
Income taxes paid, net of refunds	$	4,600		$	2,092

The accompanying Notes are an integral part of these Unaudited Condensed Consolidated Financial Statements.

5

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)
 

Note 1 - Organization and Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Supertex, Inc. ("Supertex," the "Company," "we," and "us") and its subsidiary have been prepared in accordance with generally accepted accounting principles ("GAAP") in the United States of America.  This financial information reflects all adjustments, which are, in the opinion of the Company's management, of normal recurring nature and necessary to state fairly the balance sheet as of December 31, 2011; the statements of income for the three and nine months ended December 31, 2011 and January 1, 2011; and the statements of cash flows for the nine months ended December 31, 2011 and January 1, 2011.  The April 2, 2011 balance sheet was derived from the audited financial statements included in the fiscal 2011 Annual Report on Form 10-K, but does not include all disclosures required by GAAP in the United States of America.  All significant intercompany transactions and balances have been eliminated.

The condensed consolidated financial statements included herein have been prepared by the Company, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC").  Certain information and footnote disclosures normally included in these financial statements have been condensed or omitted pursuant to such rules and regulations, although the Company believes the disclosures which are made are adequate to make the information presented not misleading.  These financial statements should be read in conjunction with the audited consolidated financial statements of Supertex, Inc. for the fiscal year ended April 2, 2011, which were included in the fiscal 2011 Annual Report on Form 10-K.

The preparation of financial statements in conformity with GAAP in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosures of contingent assets and liabilities at the date of the financial statements as well as the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates, and such differences may be material to the financial statements. The results of operations for the three and nine months ended December 31, 2011 are not necessarily indicative of the results to be expected for any future periods.

The Company reports on a fiscal year basis and it operates and reports based on quarterly periods ending on the Saturday nearest to the end of the applicable calendar quarter, except in a 53-week fiscal year, in which case the additional week falls into the fourth quarter of the fiscal year.  Fiscal 2012 will be a 52-week year.  The three months ended December 31, 2011 and January 1, 2011, both consist of thirteen weeks.

6

Revision to previously issued financial statements

During fiscal year 2012, the Company identified that it had not been appropriately classifying the non-cash amortization of premiums paid on debt investments within the Consolidated Statement of Cash Flows.  The Company incorrectly reflected the amortization as a cash inflow from investing activities rather than a reconciling item in arriving at net cash provided by operating activities. The Company has determined to revise its Consolidated Statements of Cash Flows to correct this error. Accordingly, the Company has revised the accompanying Consolidated Statement of Cash Flows for the nine months ended January 1, 2011 and will revise the Consolidated Statements of Cash Flow for the fiscal years ended April 3, 2010 and April 2, 2011, for the three months ended July 2, 2011 and for the six months ended October 1, 2011 the next time they are filed. These misclassifications did not impact the Consolidated Statements of Income and the Consolidated Balance Sheets.  The revisions are not material to previously issued financial statements. The amounts of the revisions are shown in the table below.

	Operating Activities Impact						Investing Activities Impact
(in thousands)	As reported		Adjustment		As revised		As reported			Adjustment			As revised
2010:
Q4 YTD	$	8,541	$	1,437	$	9,978	$	(23,872	)	$	(1,437	)	$	(25,309	)
2011:
Q1		7,047		605		7,652		(5,083	)		(605	)		(5,688	)
Q2 YTD		11,243		1,371		12,614		(5,581	)		(1,371	)		(6,952	)
Q3 YTD		12,583		1,554		14,137		(264	)		(1,554	)		(1,818	)
Q4 YTD		14,450		2,305		16,755		3,086			(2,305	)		781
2012:
Q1		2,411		946		3,357		11,498			(946	)		10,552
Q2 YTD	$	3,061	$	1,647	$	4,708	$	(9,432	)	$	(1,647	)	$	(11,079	)

Recent Accounting Pronouncements

In June 2011, Financial Accounting Standard Board ("FASB") issued new authoritative guidance regarding Presentation of Comprehensive Income.  This amendment attempts to improve comparability, consistency, and transparency of financial reporting and to increase the prominence of items reported in other comprehensive income.  In order to facilitate convergence with International Financial Reporting Standards ("IFRS"), FASB has decided to eliminate the option to present components of other comprehensive income as part of the statement of changes in stockholders' equity.  Also, this amendment requires that all non-owner changes in stockholders' equity be presented in a single continuous statement of comprehensive income or in two separate but consecutive statements.  This amendment is effective for interim and annual periods beginning after December 15, 2011 (the fiscal quarter ending March 31, 2012 for the Company) and is applied retrospectively.  On October 21, 2011, the FASB proposed a deferral of the requirement to present reclassifications of other comprehensive income on the face of the income statement. Companies would still be required to adopt all other requirements contained in the guidance. The Company is currently assessing the potential effect to its Consolidated Financial Statements in applying this guidance.

In May 2011, the FASB amended fair value measurement and disclosure guidance to achieve convergence with IFRS. The amended guidance clarified existing fair value measurement guidance, revised certain measurement guidance and expanded the disclosure requirements concerning Level 3 fair value measurements. The guidance is effective for interim and annual periods beginning after December 15, 2011 (the fiscal quarter ending March 31, 2012 for the Company). The adoption of this guidance is not expected to have a material effect on the Company's consolidated financial statements.

7

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

Note 2 - Fair Value

The Company measures its cash equivalents, short-term investments and long-term investments at fair value. Fair value is defined as the price that would be received from selling an asset and paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining fair value measurements for assets and liabilities required or permitted to be recorded at fair value, the Company considers the principal or most advantageous market in which it would transact and considers assumptions that market participants would use when pricing the asset or liability, such as inherent risk, transfer restrictions, and risk of nonperformance.

A three-tiered fair value hierarchy has been established as the basis for considering the above assumptions and determining the inputs used in the valuation methodologies in measuring fair values.  The three levels of inputs are defined as follows:

Level 1 - Unadjusted quoted market prices for identical assets or liabilities in active markets that the Company has the ability to access.

Level 2 - Quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in inactive markets.

Level 3 - Valuations based on models where significant inputs are not observable. The unobservable inputs reflect the Company's own assumptions about the assumptions that market participants would use.

The Company maximizes the use of observable inputs and minimizes the use of unobservable inputs. If a financial instrument uses an input that is significant to the fair value calculation, the instrument will be categorized based upon the lowest level of input that is significant to the fair value calculation.  The Company's financial assets and liabilities measured at fair value on a recurring basis include cash equivalents and investment securities, both short-term and long-term.

The Company's long-term investments consist entirely of AAA rated auction rate securities ("ARS"), which are collateralized by student loans. Due to the lack of availability of observable market quotes for the Company's investment portfolio of these ARS, the fair value was estimated based on a discounted cash flow model and included a discount factor for illiquidity of the ARS market. The assumptions used in the discounted cash flow model include estimates for interest rates, timing and amounts of cash flows, liquidity of the underlying security, expected holding periods, and contractual terms of the security. In light of the current market condition for ARS, the Company developed different scenarios for the significant inputs used in the discounted cash flow model, including but not limited to a liquidity discount of 125 and 150 basis points per year for the current ARS market, and the timing of recovery of the ARS market from three to five years. The estimated fair value of those of the Company's ARS classified as level 3 assets ranges from $25,600,000 to $26,700,000. The Company believes this estimated range of fair values of its ARS is appropriate taking into consideration historical ARS market data, the possibility of development of a secondary market for ARS, recent market participant behavior, and public policy implications associated with the student loan based ARS market. The Company concluded that the fair value of those of its ARS which are classified as level 3 assets was $26,000,000 as of December 31, 2011 net of a temporary impairment of $2,050,000 to par value.

8

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

The Company also considered the quality, amount of collateral, and US government guarantee for the ARS and looked to other marketplace transactions and information received from other third party brokers in order to assess whether the fair value based on the discounted cash flow model is reasonable. The valuation of the Company's investment portfolio is subject to uncertainties that are difficult to predict. Factors that may affect the Company's valuation include changes to credit ratings of the securities as well as the underlying assets supporting those securities, rates of default of the underlying assets, underlying collateral values, discount rates, counterparty risk and ongoing strength, and quality of market credit and liquidity. Significant inputs to the investment valuations are unobservable in the active markets and therefore the Company's ARS are classified as Level 3 in the hierarchy.

The following tables summarize assets and liabilities measured at fair value on a recurring basis as of December 31, 2011 and April 2, 2011, excluding accrued interest (in thousands):

	December 31, 2011
	Fair value measurements
Assets	Level 1			Level 2		Level 3		Total
Money market funds	$	12,301	(2)	$	-	$	-	$	12,301
Municipal bonds		-			31,537		-		31,537
Discount notes		-			1,250		-		1,250
Corporate bonds		-			38,256		-		38,256
Government agency bonds		-			21,136		-		21,136
Certificate of deposits		-			12,186		-		12,186
Equity mutual funds related to NQDCP (1)		7,986			-		-		7,986
Long-term investments in ARS		-			-		26,000		26,000
Total assets at fair value	$	20,287		$	104,365	$	26,000	$	150,652
Liabilities
Obligation related to NQDCP (1)	$	7,986		$	-	$	-	$	7,986

	April 2, 2011
	Fair value measurements
Assets	Level 1			Level 2			Level 3		Total
Money market funds	$	10,681	(2)	$	-		$	-	$	10,681
Municipal bonds		-			62,768	(3)		-		62,768
Discount notes		-			3,998			-		3,998
Corporate bonds		-			28,177	(4)		-		28,177
Government agency bonds		-			10,816	(5)		-		10,816
Certificate of deposits		-			748			-		748
Equity mutual funds related to NQDCP (1)		8,157			-			-		8,157
Long-term investments in ARS		-			-			30,200		30,200
Total assets at fair value	$	18,838		$	106,507		$	30,200	$	155,545
Liabilities
Obligation related to NQDCP (1)	$	8,157		$	-		$	-	$	8,157

_________________________

(1)Non-qualified Deferred Compensation Plan.

(2) The money market funds of $12,301,000 and $10,681,000 were classified as cash equivalents as of December 31, 2011 and April 2, 2011, respectively.

(3) Included in municipal bonds was $151,000, which was classified as cash equivalents as of April 2, 2011.

(4) Included in corporate bonds was $253,000, which was classified as cash equivalents as of April 2, 2011.

(5) Included in government agency bonds was $4,500,000, which was classified as cash equivalents as of April 2, 2011.

9

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

The following table summarizes the change in fair value of the Company's level 3 assets during the nine months ended December 31, 2011 (in thousands):

Fair value measurements of assets using level 3 inputs	Long-term investments in ARS
Balance as of April 2, 2011	$	30,200
Redemption of investments in ARS		(4,700	)
Reduction in unrealized loss recorded in "Accumulated other comprehensive loss"		500
Balance as of December 31, 2011	$	26,000

During the nine months ended December 31, 2011, the Company received $4,700,000 relating to ARS with a carrying value at the time of $4,357,000 redeemed at par value. See Note 3 for further discussion of the Company's ARS.

Note 3 - Cash and Cash Equivalents and Investments

The Company's cash equivalents consist primarily of investments in money market funds as follows (in thousands):

	December 31, 2011		April 2, 2011
Cash	$	4,541	$	8,377
Cash equivalents:
Money market funds		12,301		10,681
Government agency Bonds		-		4,500
Corporate bonds		-		253
Municipal bonds		-		151
Total cash and cash equivalents	$	16,842	$	23,962

The Company's portfolio of short-term and long-term investments is as follows (in thousands):

	December 31, 2011
	Amortized		Unrealized		Unrealized			Carrying
	Cost		Gain		Loss			Value
Short-term investments:
Trading securities:
Equity mutual funds related to NQDCP	$	7,986	$	-	$	-		$	7,986
Available-for-sale securities:
Municipal bonds		31,527		27		(17	)		31,537
Discount notes		1,250		-		-			1,250
Corporate bonds		38,497		25		(266	)		38,256
Government agency bonds		21,099		40		(3	)		21,136
Certificates of deposits		12,187		3		(4	)		12,186
Total short-term investments	$	112,546	$	95	$	(290	)	$	112,351
Long-term investments:
Available-for sale securities	$	28,050	$	-	$	(2,050	)	$	26,000

10

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

	April 2, 2011
	Amortized		Unrealized		Unrealized			Carrying
	Cost		Gain		Loss			Value
Short-term investments:
Trading securities:
Equity mutual funds related to NQDCP	$	8,157	$	-	$	-		$	8,157
Available-for-sale securities:
Municipal bonds		62,617		2		(2	)		62,617
Discount notes		3,998		-		-			3,998
Corporate bonds		27,968		-		(44	)		27,924
Government agency bonds		6,317		-		(1	)		6,316
Certificates of deposits		749		-		(1	)		748
Total short-term investments	$	109,806	$	2	$	(48	)	$	109,760
Long-term investments:
Available-for sale securities	$	32,750	$	-	$	(2,550	)	$	30,200

The Company's short-term and long-term investments by contractual maturity are as follows (in thousands):

	December 31, 2011		April 2, 2011
Short-term investments:
Trading securities:
Due in one year or less	$	7,986	$	8,157
Available-for-sale securities:
Due in one year or less		69,022		62,919
Due in one to two years		35,343		38,684
Total short-term investments	$	112,351	$	109,760
Long-term investment:
Available-for-sale securities at amortized cost:
Due after ten years	$	26,000	$	30,200

Short-term investments classified as trading securities consisted entirely of investments in mutual funds held by the Company's Non-Qualified Deferred Compensation Plan ("NQDCP"). Unrealized gains (losses) on trading securities are recorded in the Condensed Consolidated Statement of Income. Unrealized gain on trading securities was $411,000 for the three months ended December 31, 2011. For the nine months ended December 31, 2011, the unrealized loss on trading securities was $312,000. For the same periods of the prior fiscal year, the unrealized gain on trading securities were $273,000 and $457,000, respectively.

The Company's available-for-sale portfolio as of December 31, 2011 was comprised of municipal bonds, corporate bonds, government agency bonds, discount notes, certificates of deposits and ARS. Unrealized gains (losses) on available-for-sale securities are recorded in other comprehensive income as increases (declines) in fair values and are considered to be temporary.

During the three and nine months ended December 31, 2011, the Company disposed of short-term available-for-sale securities totaling $15,555,000 and $123,846,000 at par, compared to $11,985,000 and $77,957,000, respectively, for the same periods of the prior fiscal year.  The realized gains and losses of these transactions were immaterial.

11

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

The Company's ARS have contractual maturities between 20 and 30 years. They are in the form of auction rate bonds whose interest rates had historically been reset every thirty-five days through an auction process. At the end of each reset period, investors could sell or continue to hold the securities at par. These ARS held by the Company are backed by pools of student loans and are primarily guaranteed by the U.S. Department of Education. In addition, all the ARS held by the Company are rated by the major independent rating agencies as AAA.

ARS with a par value of $28,050,000 were classified as non-current assets and were presented as long-term investments on the Company's balance sheet as of December 31, 2011.

The Company has concluded that the decline in fair value of the ARS investments, as of December 31, 2011, is considered to be temporary in part due to the following:

 - these investments are of high credit quality and a significant portion of them is collateralized and is guaranteed by the U.S. Department of Education;

 - there have been no defaults on the ARS held by the Company as of December 31, 2011;

 - their AAA credit ratings have not been reduced as of December 31, 2011;

 - the Company has no intention to sell the securities below par value and it is more likely than not that the Company will not be required to sell the securities until their value returns to par; and

 - the Company received ARS redemptions at par value of $36,450,000, $19,250,000 and $12,150,000, respectively,in fiscal years 2011, 2010 and 2009. Additionally, during the nine months ended December 31, 2011, the Company received redemptions at par value totaling $4,700,000.

If uncertainties in the credit and capital markets continue or these markets deteriorate further, the Company may incur additional impairment to its ARS holdings. The Company will continue to monitor its ARS holdings and may be required to record an impairment charge through the income statement if the decline in fair value is determined to be other-than-temporary or the credit quality of its ARS holdings declines.

12

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

Note 4 - Inventories

The Company's inventories consist of high technology semiconductor devices and integrated circuits that are specialized in nature, subject to rapid technological obsolescence, and sold in a highly competitive industry.  Inventory balances at the end of each period are stated at the lower of cost (determined on a first-in, first-out basis) or net realizable value.

Inventories consist of (in thousands):

	December 31, 2011		April 2, 2011
Raw materials	$	1,345	$	1,786
Work-in-process		9,853		12,880
Finished goods		4,557		4,347
Finished goods at distributors and on consignment		1,127		1,587
Total Inventories	$	16,882	$	20,600

The Company wrote down excess and obsolete inventory totaling $1,471,000 and $2,946,000 for the three and nine months ended December 31, 2011 compared to $157,000 and $694,000 for the same periods of the prior fiscal year. The Company sold previously written-down inventory of $231,000 and $775,000 for the three and nine months ended December 31, 2011, respectively.  For the same periods of the prior fiscal year, such sales were $358,000 and $935,000, respectively.

Note 5 - Comprehensive Income

The components of the Company's comprehensive income for the three and nine months ended December 31, 2011 and January 1, 2011 are as follows (in thousands):

	Three Months Ended				Nine Months Ended
	December 31, 2011		January 1, 2011		December 31, 2011		January 1, 2011
Net income	$	96	$	2,860	$	3,476	$	10,790
Unrealized gain on available-for-sale investments, net of taxes		89		711		227		1,964
Comprehensive income	$	185	$	3,571	$	3,703	$	12,754

As of December 31, 2011, the total unrealized loss on available-for-sale investments amounted to $2,245,000, which was recorded in accumulated other comprehensive loss, net of tax of $789,000. As of January 1, 2011, the total unrealized loss on available-for-sale investments amounted to $987,000, which was recorded in accumulated other comprehensive loss, net of tax of $385,000.

Note 6 - Stock-Based Compensation

The employee stock-based compensation expense for the three and nine months ended December 31, 2011 was $821,000 and $2,243,000, respectively, compared to $795,000 and $2,372,000 for the same periods of the prior fiscal year.

13

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

During the three and nine months ended December 31, 2011, the Company granted options with an estimated total grant date fair value of $348,000 and $2,924,000, respectively. For the same periods last fiscal year, the Company granted options with an estimated grant date fair value of $79,000 and $2,517,000, respectively. As of December 31, 2011, the unrecorded stock-based compensation related to stock options was $6,316,000 (net of estimated forfeitures) and will be recognized over an estimated weighted average amortization period of approximately 2 years.

The Company's shareholders approved the adoption of the 2001 Stock Option Plan (the "2001 Plan") and the reservation of 2,000,000 shares of common stock for issuance under 2001 Plan at the August 17, 2001 annual meeting of shareholders. Options granted under the 2001 Plan were granted at the fair market value of the Company's common stock on the date of grant and generally expired seven years from the date of grant or thirty days after termination of service, whichever occurs first.  The options generally were exercisable beginning one year from date of grant and generally vest ratably over a five-year period. On August 24, 2006, the Company's board of directors approved a change in grant policy of the 2001 Plan to only grant non-statutory stock options to better align the Company's compensation plan to employee incentives and to Company objectives. On August 17, 2007, the Company's board of directors approved that all future stock option grants would have a ten-year term, which is within the guidelines of the Company's 2001 Plan, subject to earlier expiration thirty days after termination of service. As of August 14, 2009, no further options may be granted under the 2001 Plan.

The Company's shareholders approved the adoption of the 2009 Equity Incentive Plan (the "2009 Plan") at the August 14, 2009 annual meeting for shareholders. Under the 2009 Plan, the total number of shares of Company common stock reserved for issuance consists of 1,000,000 shares plus (1) the 159,509 shares which remained authorized for issuance under the 2001 Plan but which were not subject to outstanding stock awards as of August 14, 2009, and (2) those of the 1,440,400 shares, subject to stock awards outstanding under the 2001 Plan as of August 14, 2009, that terminate prior to exercise and would otherwise be returned to the share reserves under the 2001 Plan, with the total shares in addition to the 1,000,000 shares thus being up to a maximum of 1,599,909 shares. The 2009 Plan allows the Company to continue its prior option practices under the 2001 Plan to grant non-statutory options to key employees with an exercise price equal to the fair market value of the Company's stock on the date of grant. The Company's options typically have a term of ten years and vest in 20% installments on each of the first five anniversaries of the date of grant. The 2009 Plan also provides the Company with the flexibility in designing equity incentives, including restricted stock awards, stock appreciation rights, restricted stock unit awards, performance stock awards, and performance cash awards.

The following table summarizes the activities under the 2001 and 2009 Plans for the nine months ended December 31, 2011:

				Options Outstanding
	Available for Grant			Number of Shares			Weighted Average Exercise Price
Balance, April 2, 2011		977,849			1,454,622		$	27.57
Granted		(370,580	)		370,580			20.10
Exercised		-			(71,580	)		17.06
Canceled		53,360			(53,360	)		27.35
Balance, December 31, 2011		660,629			1,700,262		$	26.39

The weighted average fair value of options, as determined under the authoritative guidance for stock compensation, granted under the 2009 Plan during the three and nine months ended December 31, 2011 were $6.70 and $7.89 per share, respectively, compared to $10.55 and $10.13 per share during the same periods of the prior fiscal year.  The total intrinsic value of options exercised (which is the amount by which the stock price exceeded the exercise price of the option on the date of the exercise) during the three and nine months ended December 31, 2011 was $2,000 and $170,000 respectively.  During the three and nine months ended December 31, 2011, the amounts of cash received from employees as a result of employee stock option exercises were $22,000 and $1,221,000, respectively.

14

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

The options outstanding and exercisable at December 31, 2011, under the 2001 and 2009 Plans are in the following exercise price ranges:

Options Outstanding											Options Exercisable
Range of Exercise Prices					Number Outstanding		Weighted-Average Remaining Contractual Life (Years)		Weighted-Average Exercise Price		Number Outstanding		Weighted-Average Exercise Price
$	17.39	-	$	19.99		281,020		8.87	$	19.17		31,420	$	18.15
	20.00	-		24.99		626,102		7.79		21.44		230,962		21.05
	25.00	-		29.99		313,380		6.82		27.03		164,596		27.13
	30.00	-		34.99		236,060		2.95		33.77		217,660		33.76
	35.00	-		39.99		90,800		5.46		35.83		76,640		35.83
	40.00	-		44.99		134,900		1.83		40.90		119,280		40.88
	45.00	-		46.92		18,000		1.92		46.92		18,000		46.92
$	17.39	-	$	46.92		1,700,262		6.46	$	26.39		858,558	$	29.95

The total intrinsic value of options outstanding and options exercisable as of December 31, 2011 were $80,000 and $38,000, respectively.

2000 Employee Stock Purchase Plan ("ESPP").Under the ESPP, eligible employees may elect to withhold up to 20% of their cash compensation to purchase shares of the Company's common stock at a price equal to 95% of the market value of the stock at the time of purchase, which is at the end of the six-month offering period.  An eligible employee may purchase no more than 500 shares during any six-month offering period. For the three and nine months ended December 31, 2011, the amounts of cash received from employees as a result of ESPP purchases were $70,000 and $159,000, respectively, compared to $85,000 and $178,000 for the same periods of the prior fiscal year.

Note 7 - Income Taxes

The benefit from income taxes for the three months ended December 31, 2011 was $703,000 on loss before tax of $607,000 at the effective tax benefit rate of 116% compared to a provision for income taxes of $726,000 on income before tax of $3,586,000 at the effective tax rate of 20% in the third quarter of the prior fiscal year. The year-over-year quarterly change in estimated tax rate was primarily due to a pre-tax loss compared to a pre-tax profit last year and changes in where the Company expects its income and losses to be generated this year between its US and Hong Kong entities which have different tax rates.

The provision for income taxes for the nine months ended December 31, 2011 was $303,000 on income before tax of $3,779,000 at the effective tax rate of 8% compared to $4,861,000 on income before tax of $15,651,000 at the effective tax rate of 31% for the same period in the prior fiscal year. The year-over-year decrease in estimated tax rate for the nine-month period was primarily due to changes in where the Company expects its income and losses to be generated this year between its US and Hong Kong entities which have different tax rates and reductions in state taxes, partially offset by the company's inability to claim the U.S.  manufacturing tax deduction due to a limitation in income.

15

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

The income tax provision for interim periods reflects the Company's computed estimated annual effective tax rate and differs from the taxes computed at the federal and state statutory rates primarily due to the effects of foreign rate differentials, R&D tax credits, non-deductible stock-based compensation expense, tax exempt interest income and tax contingencies.

During the nine months ended December 31, 2011, the liability for uncertain income tax positions excluding accrued interest and penalties decreased from $4,052,000 to $4,044,000. Of the total $4,044,000 of unrecognized tax benefits, $3,169,000 represents the amount that, if recognized, would favorably affect the Company's effective income tax rate in a future period. The Company cannot conclude on the range of cash payments that will be made within the next twelve months associated with its uncertain tax positions.

The Company records interest and penalties related to unrecognized tax benefits in income tax expense. On December 31, 2011, the Company had approximately $562,000 accrued for estimated interest and $414,000 for estimated penalties related to uncertain tax positions. For the nine months ended December 31, 2011, the Company recorded estimated interest of $89,000 and estimated penalties of $5,000.

The balance of unrecognized income tax benefits, including accrued interest and accrued penalties on December 31, 2011, was approximately $1,259,000 related to tax positions for which it is reasonably possible that the statute of limitations will expire in various jurisdictions within the next twelve months.

The Company's major tax jurisdictions are the United States federal, State of California and Hong Kong and the Company's income tax returns are no longer subject to examination by these taxing authorities for fiscal years before 2002.

16

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

Note 8 - Net Income per Share

Basic earnings per share ("EPS") is computed as net income divided by the weighted average number of common shares outstanding for the period.  Diluted EPS reflects the potential dilution that could occur from common shares that may be issued through stock options and ESPP only, since the Company does not have warrants or any other convertible securities outstanding.  A reconciliation of the numerator and denominator of basic and diluted earnings per share is provided as follows (in thousands, except per share amounts):

	Three Months Ended				Nine Months Ended
	December 31, 2011		January 1, 2011		December 31, 2011		January 1, 2011
BASIC:
Net income	$	96	$	2,860	$	3,476	$	10,790
Weighted average shares outstanding for the period		12,063		13,036		12,439		12,995
Net income per share	$	0.01	$	0.22	$	0.28	$	0.83
DILUTED:
Net income	$	96	$	2,860	$	3,476	$	10,790
Weighted average shares outstanding for the period		12,063		13,036		12,439		12,995
Effect of dilutive securities: stock options and ESPP		3		43		11		59
Total		12,066		13,079		12,450		13,054
Net income per share	$	0.01	$	0.22	$	0.28	$	0.83

Options to purchase 1,652,846 shares of the Company's common stock at an average price of $26.66 per share, and 1,512,980 shares at an average price of $27.36 per share for the three and nine months ended December 31, 2011, respectively, were outstanding but were not included in the computation of diluted earnings per share because their effect would have been anti-dilutive.

For the three and nine months ended January 1, 2011, options to purchase 1,374,973 shares of the Company's common stock at an average price of $28.37 per share, and 1,274,120 shares at an average price of $28.90 per share, respectively, were outstanding but were not included in the computation of diluted earnings per share because their effect would have been anti-dilutive.

Note 9 - Commitments and Contingencies

Indemnification

As is customary in the Company's industry, the Company has agreed to defend certain customers, distributors, suppliers, and subcontractors against certain claims which third parties may assert that its products allegedly infringe on certain of their intellectual property rights, including patents, trademarks, trade secrets, or copyrights.  The Company has agreed to pay certain amounts of any resulting damage awards and typically has the option to replace any infringing product with non-infringing product.  The terms of these indemnification obligations are generally perpetual from the effective date of the agreement.  In certain cases, there are limits on and exceptions to the Company's potential liability for indemnification relating to intellectual property infringement claims.  The Company cannot estimate the amount of potential future payments, if any, that it might be required to make as a result of these agreements.  To date, the Company has not paid any damage awards nor has it been required to defend any claims related to its indemnification obligations, and accordingly, it has not accrued any amounts for indemnification obligations.  However, there can be no assurance that the Company will not have any financial exposure under those indemnification obligations in the future.

17

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

Legal Proceedings

From time to time the Company is subject to possible claims or assessments from third parties arising in the normal course of business.  Management has reviewed such possible claims and assessments with the Company's outside legal counsel and believes that it is unlikely that they will result in any material adverse effect on the Company's financial condition, results of operations, or cash flows.  The Company is not currently involved in any legal proceeding that it believes will materially and adversely affect its business, financial condition, results of operations or cash flows.

The Company engaged in certain export-related activities consisting of having one of the Company's integrated circuits shipped to assemblers and to its wholly-owned subsidiary in Hong Kong for assembly and testing. Upon realizing that these activities may have inadvertently violated the International Traffic in Arms Regulations ("ITAR") and the Arms Export Control Act, the Company investigated the facts and circumstances and voluntarily disclosed them to the U.S. Department of State. The U.S. Department of State notified the Company in September 2011, that although it had determined that these activities violated the ITAR, it was closing the case without fine and without taking further action, while reserving the right to re-open the case if the circumstances warrant. The U.S. Department of State cautioned the Company to take actions to strengthen its compliance processes and procedures, which the Company believes it has done. Among other measures, since becoming aware of these ITAR issues, the Company has moved the assembly and testing of these products to ITAR-compliant onshore facilities.

Product Return and Warranty Reserves

The Company's standard policy is to accept the return of defective parts for credit from non-distributor customers for a period of 90 days from date of shipment. This period may be extended in certain cases. The Company records estimated product returns as a reduction to revenue in the same period as the related revenues are recorded. These estimates are based on historical experience, analysis of outstanding returned material authorizations and allowance authorization data.

The reductions to revenue for estimated product returns for the three and nine months ended December 31, 2011 and January 1, 2011 are as follows (in thousands):

Description	Balance at Beginning of Period		Charge(1)		Deductions and Other			Balance at End of Period
Three months ended December 31, 2011	$	189	$	3	$	(20	)	$	172
Three months ended January 1, 2011	$	322	$	144	$	(209	)	$	257
Nine months ended December 31, 2011	$	234	$	19	$	(81	)	$	172
Nine months ended January 1, 2011	$	217	$	488	$	(448	)	$	257

___________________

(1) Represent amounts charged to the allowance for sales returns.

18

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

While the Company's sales returns are historically within the allowance established, it cannot guarantee that it will continue to experience the same return rates that it has had in the past.  Any significant increase in product failure rates and the resulting sales returns could have a material adverse effect on the operating results for the period or periods in which such returns materialize.

For sales through distributors, the Company's policy is to replace under warranty defective products at its own expense for a period of 90 days from date of shipment. This period may be extended in certain cases. This liability is limited to replacement of the product along with freight and delivery costs. In certain cases, the Company may pay for rework.

The Company reserves for estimated warranty costs in the same period as the related revenues are recorded. The estimate is based on historical expenses and is recorded as cost of sales. The warranty reserve was $44,000 as of December 31, 2011. Such amount was $48,000 as of April 2, 2011.

Operating Lease Obligations

The Company's future minimum lease payments under non-cancelable operating leases as of December 31, 2011 are as follows (in thousands):

Payment Due by Year (12 month increments)	Operating Lease
Less than 1 year	$	848
2 years		693
3 years		658
4 years		634
5 years		213
	$	3,046

The Company leases facilities under non-cancelable lease agreements expiring at various times through April 2016.  Rental expense for the three and nine months ended December 31, 2011 amounted to $262,000 and $808,000, respectively, compared to $266,000 and $789,000 for the same periods of last fiscal year.

Note 10 - Common Stock Repurchase

Share repurchase activities for the three and nine months ended December 31, 2011 and January 1, 2011 are as follows:

	Three Months Ended				Nine Months Ended
	December 31, 2011		January 1, 2011		December 31, 2011		January 1, 2011
Number of shares repurchased		118,000		-		832,000		-
Cost of shares repurchased	$	2,077,000	$	-	$	15,897,000	$	-
Average price per share	$	17.61	$	-	$	19.11	$	-

In January 2011, the Board of Directors designated $60,000,000 of its cash, cash equivalents and investments for a major stock repurchase during the period from January 2011 through March 2013, and accordingly, increased the Company's share repurchase program from approximately 556,000 shares to 2,500,000 shares. The amended repurchase program has no expiration date except when an aggregate of 2,500,000 shares have been repurchased, either in the open market or through private transactions. Under this program, cumulatively the Company has repurchased approximately 1,105,000 shares for $22,164,000 as of December 31, 2011.

19

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

Since the inception of the Company's initial share repurchase program in 1992 through December 31, 2011, the Company has repurchased a total of approximately 3,449,000 shares of the common stock for an aggregate cost of $58,715,000 under its share repurchase programs. Upon their repurchase, shares are restored to the status of authorized but unissued shares. As of December 31, 2011, there were approximately 1,395,000 shares authorized for future repurchase under the Company's current repurchase program.

Note 11 - Segment Information

The Company operates in one reportable segment comprising the design, development, manufacturing and marketing of high voltage semiconductor devices including analog and mixed signal integrated circuits.  The Company's chief operating decision maker, who is currently the Company's chief executive officer, reviews financial information presented on a consolidated basis for purposes of making operating decisions and assessing financial performance.

The Company's principal markets are in Asia, the United States, and Europe.  Below is a summary of sales by major geographic area for the three and nine months ended December 31, 2011 and January 1, 2011 (in thousands):

	Three Months Ended				Nine Months Ended
Net Sales	December 31, 2011		January 1, 2011		December 31, 2011		January 1, 2011
United States	$	5,310	$	5,238	$	16,881	$	17,774
China		3,358		4,626		12,440		17,254
Asia (excluding China and Singapore)		2,451		3,877		8,016		13,596
Singapore		1,662		1,854		6,863		6,308
Europe		1,221		3,994		4,633		9,780
Other		64		86		251		477
Net Sales	$	14,066	$	19,675	$	49,084	$	65,189

Net property, plant and equipment by country as of December 31, 2011 and April 2, 2011 are as follows (in thousands):

	December 31, 2011		April 2, 2011
United States	$	4,178	$	4,525
Hong Kong		984		1,183
Property, plant and equipment, net	$	5,162	$	5,708

20

SUPERTEX, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

Note 12 - Significant Customers

The Company sells its products to OEMs through its direct sales and marketing personnel, and through its independent sales representatives and distributors. Revenue from sales to distributors and the related cost of sales are recognized only upon resale to end-user customers, that is on a sell-through basis.

A major medical equipment company accounted for approximately 11% of net sales for both the three and nine months ended December 31, 2011. For both the three and nine months ended January 1, 2011, the same medical equipment company accounted for approximately 12% of net sales.  Nearly all of the sales to this medical equipment company were through distributors and contract manufacturers. Also, a telecommunication supply chain company accounted for approximately 11% of net sales for the three months ended January 1, 2011.

There were no other customers that the Company believes accounted for more than 10% of the Company's net sales for the three and nine months ended December 31, 2011 and January 1, 2011.

21

Item 2.  Management's Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis should be read in conjunction with the Condensed Consolidated Financial Statements and related Notes thereto contained elsewhere in this Report.  The information contained in this quarterly report on Form 10-Q is not a complete description of our business or the risks associated with an investment in our common stock.  You are urged to carefully review and consider the various disclosures we made in this Report and in other reports filed with the SEC, including the annual report on Form 10-K for the fiscal year ended April 2, 2011.

Cautionary Statement Regarding Forward Looking Statements

This Quarterly Report on Form 10-Q includes forward-looking statements.  These forward-looking statements are not historical facts, and are based on current expectations, estimates, and projections about our industry, our beliefs, our assumptions, and our goals and objectives.  Words such as "anticipates," "expects," "intends," "plans," "believes," "seeks," and "estimates," and variations of these words and similar expressions are intended to identify forward-looking statements.  Examples of the kinds of forward-looking statements in this report include statements regarding the following: (1) our expectation that through the introduction of our new integrated solutions along with our discrete building block product offerings, we will continue to be a major player in the medical ultrasound market; (2) our belief that there are significant growth opportunities for the medical ultrasound market in China and Korea; ((3) our belief that sales of LED driver ICs for general lighting will grow as they are designed in new lighting applications; (4) our belief that R&D expenses as a percentage of net sales may fluctuate from quarter to quarter; (5) our expectation that we will spend approximately $400,000 for capital acquisitions in the fourth quarter of fiscal 2012; (6) our belief that existing cash and cash equivalents and short-term investments together with cash flow from operations will be sufficient to meet our liquidity and capital requirements through the next twelve months; (7) our belief that we have substantial production capacity in place to handle our forecasted business in fiscal 2012 and 2013; (8) our belief that the credit quality of the auction-rate securities ("ARS") we hold is high and our expectation that we will receive the full principal associated with these ARS; (9) our belief that the auction failures  of our ARS will not materially impact our ability to fund our working capital needs, capital expenditures, or other business requirements; (10) our belief that the estimated range of fair values of our ARS is appropriate; (11) our lack of intention to sell our ARS securities below par value and our view that it is more likely than not that we will not be required to sell our ARS securities until their value returns to par; (12) our belief that the declines in our ARS fair values due to the lack of liquidity are temporary and the credit risk of default or not redeeming at par is very low; (13) our belief that the credit rating of  our ARS would remain relatively high following any decline in the credit rating of U.S. government obligations; (14) our belief that our exposure to foreign currency risk is relatively small; and (15) our belief that it is unlikely that any legal claims will result in a material adverse effect on our financial position, results of operations or cash flows.

These statements are only predictions, are not guarantees of future performance, and are subject to risks, uncertainties, and other factors, some of which are beyond our control and are difficult to predict, and could cause actual results to differ materially from those expressed or forecasted in the forward-looking statements.  These risks and uncertainties include material adverse changes in the demand for our customer's products in which the Company's products are used; that competition to supply semiconductor devices in the markets in which the Company competes increases and causes price erosion; that demand does not materialize and increase for recently released customer products incorporating the Company's products; that we have delays in developing and releasing into production our planned new products; that there could be unexpected manufacturing issues as production ramps up; that the demand for the Company's products or results of its product development changes such that it would be unwise not to decrease research and development; that the IRS will determine that more US income was realized than the Company claimed or that fewer expenses were allowable; that some of the Company's equipment will be unexpectedly damaged or become obsolete, thereby requiring replacement; and that Federal deficit issues will not result in substantial reductions to the credit rating of U.S. government obligations which in turn would materially affect our auction rate securities; as well as those described in "Factors Which May Affect Operating Results" under Item 1A of Part I , "Risk Factors" in the Company's  annual report on Form 10-K for the fiscal year ended April 2, 2011.  The information included in this Form 10-Q is provided as of the filing date with the SEC and future events or circumstances could differ significantly from the forward-looking statements included herein.  Accordingly, the readers are cautioned not to place undue reliance on such statements, The Company undertakes no obligation to update any forward-looking statement as a result of new information, future events, or otherwise, except as required by law.

22

Critical Accounting Policies

Our critical accounting policies are those that both (1) are most important to the portrayal of the financial condition and results of operations and (2) require management's most difficult, subjective, or complex judgments, often requiring estimates about matters that are inherently uncertain. There have been no material changes from the methodology applied by management for critical accounting estimates previously disclosed in our fiscal 2011 Annual Report on Form 10-K.

Overview

We design, develop, manufacture, and market integrated circuits ("ICs") and application specific discrete DMOS transistors, utilizing state-of-the-art high voltage DMOS, HVCMOS and HVBiCMOS analog and mixed signal technologies.  We are an industry leader in certain high voltage ICs (HVCMOS and HVBiCMOS) which take advantage of the best features of CMOS, bipolar and DMOS technologies and integrate them into the same IC.  These ICs are used for medical ultrasound imaging, LED backlighting for LCD TVs, LED general lighting, telecommunications, printer, flat panel display, industrial and consumer product industries. We also offer custom processing services using customer-owned designs and mask tooling with our process technologies. Our current growth strategy relies on our ability to continuously and successfully introduce and market new innovative products that meet our customers' requirements.

Results of Operations

Net Sales

We operate in one reportable segment comprising the design, development, manufacturing and marketing of high voltage semiconductor devices including analog and mixed signal ICs and specialty double-diffused metal oxide semiconductor ("DMOS") transistors. We have a broad customer base, which in some cases manufactures electronic end products and equipment spanning multiple markets. As such, the assignment of revenue to the markets described in the overview above requires the use of estimates, judgment, and extrapolation. Actual results may differ slightly from those reported here. During the first fiscal quarter of 2012 we reviewed our assignment of products to markets and made minor adjustments to the market assignment for certain DMOS products. Additionally, we renamed the "imaging" market "EL/printers" to avoid confusion with the medical imaging market.

Net sales for the three and nine months ended December 31, 2011 were $14,066,000 and $49,084,000, a 29% and a 25% decrease, respectively, compared to $19,675,000 and $65,189,000 for the same periods of the prior fiscal year. These year-over-year decreases were primarily due to: decreases in sales of our LED driver ICs for backlighting LCD TVs; analog switches and high voltage pulser ICs and chipsets for medical ultrasound products; optical MEMS drivers; and electroluminescent ("EL") inverters for a cell phone application.  Net sales decreased 17% from $16,960,000 when compared to the prior quarter primarily due to a reduction in sales of our analog switches and high voltage pulser ICs and chipsets for medical ultrasound products and a reduction in sales of our printer head ICs.

23

The table below shows our estimate of the breakdown of net sales by end market for the three and nine months ended December 31, 2011 and January 1, 2011, and three months ended October 1, 2011, as well as year-over-year and sequential percentage changes (in thousands except percentages):

	Three Months Ended												Nine Months Ended
Net Sales	December 31, 2011		October 1, 2011		January 1, 2011		Sequential Change			Year-Over-Year Change			December 31, 2011		January 1, 2011		Year-Over-Year Change
Medical Electronics	$	5,426	$	6,901	$	6,568		-21	%		-17	%	$	19,380	$	24,217		-20	%
EL/Printers (1)		3,209		4,151		3,269		-23	%		-2	%		12,025		12,281		-2	%
Industrial/Other		2,603		3,084		3,151		-16	%		-17	%		9,215		9,996		-8	%
LED Lighting		1,597		1,681		3,717		-5	%		-57	%		5,070		11,534		-56	%
Telecom		1,231		1,143		2,970		8	%		-59	%		3,394		7,161		-53	%
Net Sales	$	14,066	$	16,960	$	19,675		-17	%		-29	%	$	49,084	$	65,189		-25	%

	Three Months Ended									Nine Months Ended
Net Sales	December 31, 2011			October 1, 2011			January 1, 2011			December 31, 2011			January 1, 2011
Medical Electronics		39	%		41	%		33	%		39	%		37	%
EL/Printers (1)		23	%		24	%		17	%		25	%		19	%
Industrial/Other		18	%		18	%		16	%		19	%		15	%
LED Lighting		11	%		10	%		19	%		10	%		18	%
Telecom		9	%		7	%		15	%		7	%		11	%
Net Sales		100	%		100	%		100	%		100	%		100	%

_____________________________

(1) This market was labeled "Imaging" in filings made prior to our first quarter of fiscal 2012.

Our medical electronics product family, primarily for ultrasound imaging, accounted for the largest sales of all of our five target markets for the three months ended December 31, 2011, October 1, 2011 and January 1, 2011. Sales to that market for the three and nine months ended December 31, 2011 decreased 17% and 20%, respectively, compared to same periods of the prior fiscal year due to decreased sales of our analog switches and high voltage pulser ICs and chipsets due to the soft general economic conditions and due to increased competition in this space which has also caused reductions in average selling prices.  Sequentially, net sales decreased 21%, also due to the soft economy and in part due to normal seasonal decline.

In recent years, the overall medical ultrasound imaging equipment unit volume has been shifting from big console systems to portable units and to hand-carried devices, which has driven the ultrasound imaging equipment market growth along with product upgrades for console cart-wheel machines and large stationary systems.  Because of space and power constraints, there are more requirements for circuit integration, and with our high voltage IC technology we have been among the most qualified to support these requirements. Geographically, the medical imaging equipment market is expanding very rapidly in China, India and many African countries.  Traditionally, OEMs in the United States, Germany, and Japan have been the main developers and manufacturers of medical ultrasound imaging machines, to whom we have sold our products successfully.  While sales to these OEMs continue to grow as they develop new machines, we see significant growth opportunities with OEMs in China and Korea, especially in the low cost portable machines. We are expanding our product development activities and product offerings to capitalize on these market growth opportunities.  Through the introduction of our new integrated solutions along with our discrete transistor and array building block product offerings, we believe we will continue to be a major player in this business.

24

Sales of our product offerings for the EL/printers market, which consist of EL inverter ICs, printer head ICs, flat panel display ICs and custom processing services, for the three and nine months ended December 31, 2011 were slightly lower compared to the same periods in the last fiscal year, decreasing 2% in both periods. Reduced sales of our EL inverter ICs to a hand-set OEM for a family of mobile phone products and of certain display drivers were partially offset by increased sales of printer head drivers and custom processing services. Sequentially, sales decreased 23% primarily due to the soft economy causing lower customer demand for our printer head drivers.

Sales in the industrial and other markets for the three and nine months ended December 31, 2011 decreased 17% and 8%, respectively, when compared to the same periods in the prior fiscal year. The year-over-year quarterly reduction is due to reduced sales of products for an ATE application and for custom processing services. The year-to-date reduction compared to last year is due to reduced sales of our custom processing services. Compared to the prior quarter, total sales in the industrial and other markets decreased 16% due to reduced sales of various drivers for a broad set of applications.

The year-over-year quarterly and year-to-date sales declines of LED driver ICs of 57% and 56%, respectively, resulted primarily from our major LCD TV customer supplying a substantial portion of its requirements of LED drivers for LED backlighting internally due to lower cost and from a very soft TV market. Sequentially, total LED driver IC sales decreased by 5%. We believe that sales of LED driver ICs for general lighting will grow as our new products are being designed into new lighting applications.

Sales to the telecom market for the three and nine months ended December 31, 2011 decreased 59% and 53%, respectively, compared to the same periods of the prior fiscal year. These decreases were primarily due to lower shipments of high voltage driver ICs for optical MEMS applications. Sequentially, sales to the telecom market increased 8% primarily due to higher shipments of these high voltage driver ICs for optical MEMS applications.

25

Our principal markets are in Asia, the U.S., and Europe.  Sales by geographic regions as well as year-over-year and sequential percentage changes were as follows, where international sales include sales to U.S. based customers if the products are delivered to their contract manufacturers outside the U.S. (in thousands except percentages):

	Three Months Ended												Nine Months Ended
Net Sales	December 31, 2011		October 1, 2011		January 1, 2011		Sequential Change			Year-Over-Year Change			December 31, 2011		January 1, 2011		Year-Over-Year Change
United States	$	5,310	$	5,390	$	5,238		-1	%		1	%	$	16,881	$	17,774		-5	%
China		3,358		4,147		4,626		-19	%		-27	%		12,440		17,254		-28	%
Asia (excluding China and Singapore)		2,451		3,033		3,877		-19	%		-37	%		8,016		13,596		-41	%
Singapore		1,662		2,609		1,854		-36	%		-10	%		6,863		6,308		9	%
Europe		1,221		1,704		3,994		-28	%		-69	%		4,633		9,780		-53	%
Other		64		77		86		-17	%		-26	%		251		477		-47	%
Net Sales	$	14,066	$	16,960	$	19,675		-17	%		-29	%	$	49,084	$	65,189		-25	%
International Sales	$	8,756	$	11,570	$	14,437		-24	%		-39	%	$	32,203	$	47,415		-32	%
Domestic Sales		5,310		5,390		5,238		-1	%		1	%		16,881		17,774		-5	%
Net Sales	$	14,066	$	16,960	$	19,675		-17	%		-29	%	$	49,084	$	65,189		-25	%

Total net sales to international customers for the three and nine months ended December 31, 2011 compared to the same periods last year decreased 39% and 32%, respectively. The year-over-year decreases were primarily due to decreases in sales of LED drivers for backlighting LCD TVs, analog switches and high voltage pulser ICs and chipsets for medical ultrasound products, and electroluminescent ("EL") inverters for a cell phone application. Compared to the prior quarter, total net sales to international customers decreased 24% primarily due to lower sales of high voltage pulser ICs and chipsets for medical ultrasound products and printer head drivers. The year-to-date international sales reduction of 32% was due to the weak international economy.

Total net sales to domestic customers for the three and nine months ended December 31, 2011 increased 1% and decreased 5%, respectively, compared to the same periods of the prior fiscal year and decreased 1% sequentially. The year-to-date domestic sales reduction of 5% was due to soft domestic economic conditions.

Our assets are primarily located in the United States and Hong Kong.

26

Cost of Sales and Gross Profit

Gross profit represents net sales less cost of sales.  Cost of sales includes the cost of raw silicon wafers; the costs associated with assembly, packaging, test, quality assurance and product yields; the cost of personnel, facilities and depreciation on equipment for manufacturing and its support; and charges for excess or obsolete inventory.

	Three Months Ended									Nine Months Ended
(Dollars in thousands)	December 31, 2011			October 1, 2011			January 1, 2011			December 31, 2011			January 1, 2011
Gross Margin Percentage		38	%		50	%		53	%		47	%		55	%
Included in Gross Margin Percentage Above:
Gross Margin Benefit from Cost of Previously Written Down Inventory Sold	$	231		$	249		$	358		$	775		$	935
Percentage of Net Sales		2	%		1	%		2	%		2	%		1	%

Gross profit for the three and nine months ended December 31, 2011 was $5,358,000 and $22,952,000 compared to $10,334,000 and $36,068,000, respectively, for the same periods of the prior fiscal year. As a percentage of net sales, gross margin was 38% and 47% for the three and nine months ended December 31, 2011 compared to 53% and 55%, respectively, for the same periods of the prior fiscal year. The year-over-year quarterly decrease in gross profit and gross margin was primarily attributable to decreased sales resulting in lower fab utilization including an idle capacity charge of $260,000 for the third quarter of fiscal 2012 and an increase in charges for excess and obsolete inventory. The year-over-year nine month decrease in gross margin resulted from decreased sales resulting in lower fab utilization including idle capacity charges of $1,369,000 for the nine months of fiscal 2012, an increase in charges for excess and obsolete inventory, unfavorable product mix, and reduced average selling prices primarily in certain medical ultrasound products.

Gross margin for the three months ended December 31, 2011 decreased from 50% to 38% compared to the prior quarter due to lower sales, decreased fab capacity utilization and an increase in charges for excess and obsolete inventory. We decreased our wafer starts and fab activity which helped drive a $2.2 million inventory reduction.

We wrote down excess and obsolete inventory totaling $1,471,000 and $2,946,000, respectively, for the three and nine months ended December 31, 2011 compared to $157,000 and $694,000 for the same periods of the prior fiscal year.

Research and Development ("R&D") Expenses

R&D expenses include payroll and benefits, development costs, and depreciation. We also expense prototype wafers and mask sets related to new product development as R&D expenses.

	Three Months Ended															Nine Months Ended
(Dollars in thousands)	December 31, 2011			October 1, 2011			January 1, 2011			Sequential Change			Year-Over-Year Change			December 31, 2011			January 1, 2011			Year-Over-Year Change
R&D Expenses	$	3,480		$	3,220		$	3,692			8	%		-6	%	$	10,514		$	10,823			-3	%
Percentage of Net Sales		25	%		19	%		19	%								21	%		17	%

27

The quarterly year-over-year decrease of $212,000 was due to a decrease in the cost of development wafer processing of $410,000, partially offset by higher employee compensation expenses of $178,000 including employee stock based compensation.  The nine month year-to-date decrease of $309,000 was primarily due to reduced expense of $297,000 related to our Non-Qualified Deferred Compensation Plan ("NQDCP") as the assets in the NQDCP decreased in fair market value by $170,000 compared to an increase in fair market value of $127,000 last year. The sequential increase of $260,000 was primarily due to increased expense of $507,000 related to the NQDCP as the assets in the NQDCP increased in fair market value by $162,000 compared to a decrease of $345,000 last quarter. This increase in expense was partially offset by a decrease in the cost of development wafer processing of $135,000 and lower employee compensation expense of $103,000.

Some aspects of our R&D efforts require significant short-term expenditures.  As such, timing of such expenditures may cause fluctuations in our R&D expenses, which, as a percentage of net sales, may fluctuate from quarter to quarter.

Selling, General and Administrative ("SG&A") Expenses

SG&A expenses consist primarily of employee related expenses, commissions to sales representatives, occupancy expenses including expenses associated with our regional sales offices, cost of advertising and publications, and outside professional services such as legal, auditing and tax.

	Three Months Ended															Nine Months Ended
(Dollars in thousands)	December 31, 2011			October 1, 2011			January 1, 2011			Sequential Change			Year-Over-Year Change			December 31, 2011			January 1, 2011			Year-Over-Year Change
SG&A Expenses	$	3,269		$	2,706		$	3,501			21	%		-7	%	$	9,226		$	10,673			-14	%
Percentage of Net Sales		23	%		16	%		18	%								19	%		16	%

The year-over-year quarterly decrease of $232,000 was primarily due to lower professional services expense of $308,000, partially offset by higher payroll costs. The nine months year-to-date decrease of $1,447,000 was primarily due to lower professional services expense of $757,000, lower NQDCP expense of $361,000 as the assets in the NQDCP decreased in fair market value by $86,000 compared to an increase in fair market value of $275,000 for the same period last year, lower profit sharing bonus of $286,000, and lower sales incentives expenses of $232,000, partially offset by increased payroll expense of $301,000. The sequential increase of $563,000 resulted primarily from an increase in fair market value of investments held by our NQDCP versus a decrease last quarter which accounted for a difference of $538,000.

28

Interest Income and Other Income (Expense), Net

	Three Months Ended															Nine Months Ended
(Dollars in thousands)	December 31, 2011			October 1, 2011			January 1, 2011			Sequential Change			Year-Over-Year Change			December 31, 2011			January 1, 2011			Year-Over-Year Change
Interest Income	$	251		$	234		$	172			7	%		46	%	$	737		$	589			25	%
Other Income (Expense), Net		533			(819	)		273			165	%		95	%		(170	)		490			-135	%
Total Interest  and Other Income (Expense) , Net	$	784		$	(585	)	$	445			234	%		76	%	$	567		$	1,079			-47	%
Percentage of Net Sales		6	%		-3	%		2	%								1	%		2	%

Interest income consists primarily of interest income from our cash, cash equivalents and short-term and long-term investments. For the three and nine months ended December 31, 2011, interest income increased $79,000 and $148,000, respectively, compared to the same periods of the prior fiscal year. This resulted from higher investment yields. Sequentially, interest income was slightly higher.

Other income (expense), net, consists of changes in the fair market value of investments held by our NQDCP, sales of fixed assets, foreign exchange gains and losses and other miscellaneous income and expense items. Other income, net for the third fiscal quarter increased $260,000 compared to the same period last year primarily due to a greater increase in fair market value of our NQDCP of $136,000.  On a year-to-date basis, the decrease in other income (expense), net was primarily due to a reduction in NQDCP assets in fiscal year 2012 by $312,000 resulting in an overall other expense of $170,000 compared to an other income of $490,000 for the same period last year which resulted from an increase in fair value of  NQDCP assets of $457,000. Sequentially, the increase in fair value of our NQDCP asset accounted for $1,231,000 of the $1,352,000 difference in other income, net of $533,000 in the third fiscal quarter compared to other expense, net of $819,000 in the second fiscal quarter.

Provision for Income Taxes

The income tax provision for the interim period represents federal, state and foreign taxes and reflects our computed estimated annual effective tax rate. The tax provision differs from the taxes computed at the federal and state statutory rates primarily due to the effect of foreign rate differentials, R&D tax credits, non-deductible stock-based compensation expense, tax exempt interest income and tax contingencies.

The income tax benefit for the three months ended December 31, 2011 was $703,000 on a loss before tax of $607,000 at the effective tax benefit rate of 116% compared to an income tax provision of $306,000 on income before tax of $2,017,000 at the effective tax rate of 15% for the prior quarter, and an income tax provision of $726,000 on income before tax of $3,586,000 at the effective tax rate of 20% in the third quarter of the prior fiscal year. The year-over-year quarterly change in estimated tax rate was primarily due a pre-tax loss compared to a pre-tax profit last year and changes in where we expect our income and losses to be generated this year between our US and Hong Kong entities which have different tax rates.

29

The provision for income taxes for the nine months ended December 31, 2011 was $303,000 on income before tax of $3,779,000 at the effective tax rate of 8% compared to $4,861,000 on income before tax of $15,651,000 at the effective tax rate of 31% in the same period of the prior fiscal year. The year-over-year decrease in estimated tax rate for the nine-month period was primarily due to changes in where we expect our income and losses to be generated this year between our US and Hong Kong entities which have different tax rates and reductions in state taxes, partially offset by our inability to claim the U.S. manufacturing tax deduction due to a limitation in income.

We maintain liabilities for uncertain tax positions within our income taxes payable account. The determination of the liability amount involves considerable judgment and estimation, and is continuously monitored by management, based on the best information available including changes in tax regulations, the outcome of relevant court cases and other information.

Financial Condition

Overview

We ended the third quarter of fiscal 2012 with $155,193,000 in cash, cash equivalents, short-term and long-term investments. This represents a decrease of $8,729,000 when compared with the amount of $163,922,000 as of April 2, 2011 resulting from the repurchase of our stock for $15,897,000, partially offset by cash provided by operating activities of $8,793,000 and proceeds from exercise of stock options granted under the 2001 and 2009 Plans and purchases of stock under the ESPP. Working capital is defined as current assets less current liabilities. As of December 31, 2011, working capital was $152,962,000, a decrease of $3,711,000 from $156,673,000 as of April 2, 2011.  The decrease in working capital was primarily the result of stock repurchases partially offset by auction rate security redemptions, proceeds from exercise of stock options granted under the 2001 and 2009 Plans, purchases of stock under the ESPP, and cash generated from operating activities.

Since we announced the twenty-six month $60 million stock repurchase program at the end of January 2011, as of February 8, 2012, we have repurchased approximately 1,105,000 shares for a total of $22,164,000.

Liquidity and Capital Resources

In summary, our cash flows are as follows (in thousands):

	Nine Months Ended
	December 31, 2011			January 1, 2011
Net cash provided by operating activities	$	8,793		$	14,137
Net cash used in investing activities		(1,396	)		(1,818	)
Net cash (used in) provided by financing activities		(14,517	)		2,282
Net (decrease) increase in cash and cash equivalents	$	(7,120	)	$	14,601

Operating Activities

Net cash provided by operating activities is net income adjusted for certain non-cash items and changes in assets and liabilities. For the nine months ended December 31, 2011, net cash provided by operating activities was $8,793,000 compared to $14,137,000 for the same period of the prior fiscal year. The decrease of $5,344,000 primarily resulted from lower net income after non-cash adjustments of $5,352,000 offset by a small increase from changes in assets and liabilities. Notwithstanding the overall decrease in net cash provided by operating activities, the non-cash adjustments in the first nine months of fiscal 2012 increased cash flow from operating activities by $1,962,000 more than those of the same period of last fiscal year. These higher non-cash adjustments were primarily due to an increase in the provision for excess and obsolete inventory resulting from a general decrease in sales this year versus an increase last year as well as inventory write-downs due to several customer product transitions. Also contributing to the higher non-cash adjustments were an unrealized loss from short-term investments categorized as trading compared to a gain in the same period of last fiscal year, and a higher amortization of premium paid on our short-term investments. The small increase from changes in assets and liabilities was due to several offsetting items. Increasing cash flow from operating activities were an inventory reduction this year compared to a large increase in inventory last year, lower prepaid income taxes this year compared to an increase last year, and reduced trade accounts receivables this year due a lower sales trend. These increases were offset by reduced income taxes payable compared to an increase in the prior fiscal year, an increase in prepaid expenses and other assets compared to a small decrease last year, a decrease in trade accounts payable and accrued expenses due to lower sales and reduced production activity compared to increases last year, and a greater decrease in deferred revenue as distributor inventory in fiscal 2012 decreased due to the soft economy.

30

Investing Activities

Investing cash flows consist typically of capital expenditures and purchases of short-term and long-term investments, partially offset by sales, maturities and redemptions of short-term and long-term investments. Net cash used in investing activities for the nine months ended December 31, 2011 was $1,396,000 compared to $1,818,000 for the same period of last fiscal year. This difference of $422,000 was primarily due to increased sales and maturities of short-term investments of $30,280,000, partially offset by increased purchases of investments of $29,956,000. We expect to spend approximately $1,200,000 for capital acquisitions in fiscal 2012, of which we have spent $778,000 during the first nine months of fiscal 2012. We believe that we have substantial production capacity in place to handle our forecasted business for the remainder of fiscal 2012 and fiscal 2013.  We also believe that existing cash and cash equivalents and short-term investments together with cash flow from operations will be sufficient to meet our liquidity and capital requirements through the next twelve months.

Our investment portfolio is primarily comprised of corporate bonds, municipal bonds, government agency bonds, discount notes, certificates of deposits, and ARS.

As further described in Note 3, auction failures of our ARS have limited our ability to liquidate them to date at par value, and may continue to limit our ability to liquidate them at par value for some period of time. However, we do not believe the auction failures will materially impact our ability to fund our working capital needs, capital expenditures, or other business requirements. As of December 31, 2011, we had approximately $152,962,000 of working capital, including approximately $129,193,000 of cash, cash equivalents, and short-term investments, and we have generated positive cash from our operations every quarter over the past 19 years.

Financing Activities

Financing cash flows consists primarily of proceeds from the exercise of stock options under the 2001 and 2009 Plans and sale of stock through the ESPP, stock repurchased under our previously announced stock repurchase plan, and reclassification of non-cash excess tax benefit from operating into financing activities as required by authoritative guidance for stock compensation. Net cash used in financing activities for the nine months ended December 31, 2011 was $14,517,000 due to repurchases of our shares in the open market, partially offset by proceeds from the exercise of stock options granted under the 2001 and 2009 Plans and stock purchases under the ESPP of $1,380,000. Net cash provided by financing activities for the nine months ended January 1, 2011 was $2,282,000 due to the proceeds from the exercise of stock options granted under the 2001 and 2009 Plans and stock purchases under the ESPP of $2,277,000 and excess tax benefit of $5,000 related to stock based compensation.

31

Off-Balance Sheet Arrangements

We do not have nor have we ever had any off-balance sheet arrangements that have, or are likely to have, a current or future material effect on our financial condition, sales, expenses, results of operations, liquidity, capital expenditures, or capital resources. See Note 9, "Commitments and Contingencies" regarding our indemnification agreements.

Contractual Obligations

We purchase products from a variety of suppliers and use several contract assemblers to provide manufacturing services for our products. During the normal course of business, in order to manage manufacturing lead times and help assure adequate material supplies at low cost, we may enter into agreements with contract assemblers and suppliers which commit us to a minimum purchase over a specified time period at a negotiated low price.  In certain instances, these agreements allow us the option to cancel, reschedule, and adjust our requirements based on our business needs prior to firm orders being released. Consequently, only a portion of our reported purchase commitments arising from these agreements are firm, non-cancelable, and unconditional commitments.

The following table summarizes our significant contractual cash obligations as of December 31, 2011, which consist of operating facility lease obligations and purchase obligations as described above, and the effects such obligations are expected to have on our liquidity and cash flow in future periods (in thousands):

Contractual Obligations	Total		Less than 1 Year		1-2 Years		2-3 Years		3-4 Years		4-5 Years
Operating lease obligations (1)	$	3,046	$	848	$	693	$	658	$	634	$	213
Purchase obligations		5,102		4,134		481		487		-		-
Total contractual cash obligations	$	8,148	$	4,982	$	1,174	$	1,145	$	634	$	213

_____________

  (1) We lease facilities under non-cancelable lease agreements expiring at various times through April 2016.  Rental expense for the three and nine months ended December 31, 2011 amounted to $262,000 and $808,000, respectively, compared to $266,000 and $789,000 for the same periods of the prior fiscal year.

As of December 31, 2011, our liability for uncertain tax positions, net of offsetting tax benefits associated with the correlative effects of potential transfer pricing adjustments, state income taxes, interest deductions, and other receivables, was $3,169,000. As of December 31, 2011, we have accrued $562,000 of interest and $414,000 of penalties associated with our uncertain tax positions. We did not include these obligations in the table above as we cannot determine the exact amount or timing of such cash payments that would be made associated with these uncertain tax positions.

Recent Accounting Pronouncements

In June 2011, Financial Accounting Standard Board ("FASB") issued new authoritative guidance regarding Presentation of Comprehensive Income.  This amendment attempts to improve comparability, consistency, and transparency of financial reporting and to increase the prominence of items reported in other comprehensive income.  In order to facilitate convergence with International Financial Reporting Standards ("IFRS"), FASB has decided to eliminate the option to present components of other comprehensive income as part of the statement of changes in stockholders' equity.  Also, this amendment requires that all non-owner changes in stockholders' equity be presented in a single continuous statement of comprehensive income or in two separate but consecutive statements.  This amendment is effective for interim and annual periods beginning after December 15, 2011 (the fiscal quarter ending March 31, 2012 for us) and is applied retrospectively.  On October 21, 2011, the FASB proposed a deferral of the requirement to present reclassifications of other comprehensive income on the face of the income statement. Companies would still be required to adopt all other requirements contained in the guidance. We are currently assessing the potential effect to our Consolidated Financial Statements in applying this guidance.

32

In May 2011, the FASB amended fair value measurement and disclosure guidance to achieve convergence with IFRS. The amended guidance clarified existing fair value measurement guidance, revised certain measurement guidance and expanded the disclosure requirements concerning Level 3 fair value measurements. The guidance is effective for interim and annual periods beginning after December 15, 2011 (the fiscal quarter ending March 31, 2012 for us). The adoption of this guidance is not expected to have a material effect on our consolidated financial statements.

Available Information

We file electronically with the SEC our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments, if any, to those reports pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934.  The SEC maintains an Internet site at http://www.sec.gov that contains these reports, proxy and information statements and other information regarding Supertex, Inc. We make available free of charge and through our Internet website at www.supertex.com copies of these reports as soon as reasonably practicable after filing or furnishing the information to the SEC.  Copies of such documents may be requested by contacting our Investor Relations department at (408) 222-8888 ext. 4295.

Item 3.  Quantitative and Qualitative Disclosures about Market Risk

Interest Rate Risk

We are exposed to financial market risks due primarily to changes in interest rates.  We do not use derivatives to alter the interest characteristics of the investment securities.  We have no holdings of derivative or commodity instruments.  Our investment portfolio is comprised of corporate bonds, municipal bonds, government agency bonds, discount notes, certificates of deposits and ARS we hold. During the three and nine months ended December 31, 2011, investments and cash and cash equivalents generated interest income of $251,000 and $737,000, compared to $172,000 and $589,000, respectively, for the same periods of the prior fiscal year.  Based on the par value of our investments (excluding the fair market value of our NQDCP) and cash and cash equivalent balances as of December 31, 2011, a one-percentage point change in interest rates would cause a change in our quarterly interest income by approximately $374,000.

As of December 31, 2011, we had no long-term debt outstanding.

Our ARS are in the form of auction rate bonds whose interest rates were reset every thirty-five days through an auction process. ARS are subject to the risk that the secondary market might fail to provide the liquidity opportunity at the rate reset points. This risk, which we encountered with regard to our ARS beginning February 2008, manifests itself in sponsoring broker-dealers withdrawing from the auction process that provides the rate reset and liquidity. We believe the declines in our ARS fair value due to the lack of liquidity are temporary. In the event we need to access the funds associated with failed auctions, they are not expected to be available until one of the following occurs: a successful auction occurs, the issuer redeems the issue, a buyer is found outside of the auction process, or the underlying security has matured. As of December 31, 2011, our ARS had a total par value of $28,050,000 and contractual maturities between 20 and 30 years.

33

Due to the temporary impairment in value of our ARS, we recorded an unrealized loss of $2,050,000 to their par value as of December 31, 2011, which decreased from $2,550,000 as of April 2, 2011, primarily because of additional redemptions of our ARS at par value during nine months ended December 31, 2011.

The ARS we hold are backed by student loans and are primarily guaranteed by the US Department of Education. In addition, all the ARS we hold are rated by the major independent rating agencies as AAA. As a result, we believe the credit risk of default or not redeeming at par is very low.

If the issuer of the ARS is unable to successfully close future auctions or does not redeem the ARS, or the US government fails to support its guaranty of its obligations, or the credit quality of these ARS declines, we may be required to further adjust the carrying value of these ARS and record other-than-temporary impairment charges in future periods, which could materially affect our financial condition. However, we expect that we will receive the principal associated with these ARS through one of the means described above. Based on our ARS holdings specifically as of December 31, 2011, a one-percentage point change in interest rates would cause a change in our quarterly interest income by approximately $70,000.

In August 2011, one major credit rating agency downgraded the credit rating of U.S. government securities due in part to a belief that the government's recently enacted fiscal consolidation plan is inadequate to stabilize the government's medium-term debt dynamics combined with the extremely difficult discussions to arrive at that plan. Other major credit rating agencies have not yet but could in the future similarly downgrade the credit rating of U.S. government securities.  The credit ratings of our ARS could correspondingly decline as have, on a case by case basis, the credit ratings of certain other debt linked with the U.S. government's debt.  This in turn could cause the fair value of our ARS to decline permanently or be other than temporarily impaired, in which case we would be required to take an impairment charge which would flow through our income statement as an expense.  However, we believe the credit rating of our ARS would remain relatively high even after any such downgrade.

Foreign Currency Exchange Risks

We do not hedge any potential risk from any foreign currency exposure. With our operations in Hong Kong, we may be exposed to an adverse change in the exchange rate of the Hong Kong dollar which is traditionally pegged to the U.S. dollar.  We believe that our exposure is relatively small, thus we do not employ hedging techniques designed to mitigate fluctuations in this exchange rate.  However, we could experience unanticipated currency gains or losses if the Hong Kong dollar ceases to be pegged to the U.S. dollar.  As the level of activity at our Hong Kong operation changes over time, actual currency gains or losses could have an adverse effect to our consolidated financial statements.

Item 4.  Controls and Procedures

(a) Disclosure Controls and Procedures.

Disclosure Controls and Procedures: Our disclosure controls and procedures are designed to ensure that information required to be disclosed in our reports filed under the Securities Exchange Act of 1934 is recorded, processed, summarized, and reported within the time periods specified in the SEC's rules and forms, including, without limitation, that such information is accumulated and communicated to our management, including our principal executive and financial officers, as appropriate to allow timely decisions regarding required disclosures.

34

Limitations on the Effectiveness of Disclosure Controls: In designing and evaluating our disclosure controls and procedures, we recognized that disclosure controls and procedures, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the disclosure controls and procedures are met.  Additionally, in designing disclosure controls and procedures, we necessarily were required to apply our judgment in evaluating the cost-benefit relationship of possible disclosure controls and procedures.  The design of any disclosure controls and procedures also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions.

Evaluation of Disclosure Controls and Procedures:  Our chief executive officer and chief financial officer have evaluated the effectiveness of the design and operation of our disclosure controls and procedures as defined in Exchange Act Rules 13a-15(e) and 15d-15(e) as of December 31, 2011, and have determined that they are effective at the reasonable assurance level.

(b) Internal Control over Financial Reporting.

Our internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) is designed to provide reasonable assurance regarding the reliability of our financial reporting and preparation of financial statements for external purposes in accordance with GAAP.   There were no changes in our internal control over financial reporting that occurred during the three months ended December 31, 2011 that have materially affected, or are reasonably likely to materially affect such control.

PART II - OTHER INFORMATION

Item 1.  Legal Proceedings

From time to time, we are subject to possible claims or assessments from third parties arising in the normal course of business.  We have reviewed such possible claims and assessments with outside legal counsel and believe that it is unlikely that they will result in a material adverse effect on our financial position, results of operations or cash flows.

We engaged in certain export-related activities consisting of having one of our integrated circuits shipped to assemblers and its wholly-owned subsidiary in Hong Kong for assembly and testing. Upon realizing that these activities may have inadvertently violated the International Traffic in Arms Regulations ("ITAR") and the Arms Export Control Act, we investigated the facts and circumstances and voluntarily disclosed them to the U.S. Department of State. The U.S. Department of State notified us in September 2011 that although it had determined that these activities violated the ITAR, it was closing the case without fine and without taking further action, while reserving the right to re-open the case if the circumstances warrant. The U.S. Department of State cautioned us to take actions to strengthen our compliance processes and procedures, which we believe we have done. Among other measures, since becoming aware of these ITAR issues, we have moved the assembly and testing of these products to ITAR-compliant onshore facilities.

Item 1A.  Risk Factors

There have been no material changes to the risk factors disclosed in Item 1A of Part I of our Form 10-K for the fiscal year ended April 2, 2011, filed on June 14, 2011, which risk factors are hereby incorporated by reference, except as described in the last paragraph under the heading "Interest Rate Risk" in Part I, Item 3 of this Form 10-Q.

35

Item 2.Unregistered Sales of Equity Securities and Use of Proceeds

The following is a summary of share purchase activities by us during the three months ended December 31, 2011. There was no purchase activity during that period by an "affiliated purchaser" of ours as defined in Rule 10b-18(a)(3).

Period	Total Number of Shares Purchased		(1)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs		(2)	Maximum Number of Shares that May yet be Purchased Under the Plans or Programs
10/02/11 - 10/29/11		116,950		$	17.61		116,950			1,396,279
10/30/11 - 11/26/11		-			-		-			1,396,279
11/27/11 - 12/31/11		1,004			17.49		1,004			1,395,275
Total		117,954		$	17.61		117,954

_________________________________

(1)

Our current share repurchase program, under which we repurchased these 117,954 shares during the three months ended December 31, 2011, has been in place since 1999. Although we publicly announced the most recent 1,944,145 share program increase, we are not certain but do not believe we publicly announced this program at its inception, although our financial statements have reflected purchases from time to time under this program. These 117,954 shares were purchased in open market transactions.

(2)

We adopted a share repurchase program in 1992 authorizing the repurchase of 1,000,000 shares. The board of directors terminated this program in 1999 after 938,000 shares had been repurchased and adopted a share repurchase program authorizing the repurchase of 900,000 shares plus the 62,000 shares authorized for repurchase under the 1992 program whose repurchase had not been affected. As described in footnote (1), we are not certain but do not believe that we publicly announced the inception of the 1999 repurchase program. On January 30, 2008, and January 21, 2011, the board of directors amended the 1999 repurchase program to add 1,000,000 and 1,944,145 shares, respectively. The 1999 repurchase program has no expiration date, other than, unless extended, when all of the shares in the program have been repurchased. As of December 31, 2011, there were 1,395,275 shares remaining in the 1999 repurchase program. Neither this program nor any other repurchase program or plan has expired during the three months ended December 31, 2011 nor have we decided to terminate any repurchase plan or program prior to expiration. There are no existing repurchase plans or programs under which we do not intend to make further purchases.

We have had share repurchase programs in place since 1992 under which our board of directors authorized us to repurchase an aggregate of 4,844,145 shares.

Since the inception of these repurchase programs in 1992 through December 31, 2011, we have repurchased a total of 3,448,870 shares of the common stock for an aggregate cost of approximately $58,715,000. Upon their repurchase, shares are restored to the status of authorized but unissued shares. As of December 31, 2011, there were 1,395,275 shares authorized for future repurchase under our current program.

Item 3.  Defaults Upon Senior Securities

None

Item 4.  Removed and Reserved

Item 5.  Other Information

None

36

Item 6.  Exhibits

  Exhibit 31.1 & 31.2 -  Certification of Chief Executive Officer and of Chief Financial Officer pursuant to Securities and Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

  Exhibit 32.1 & 32.2 -  Certification of Chief Executive Officer and of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

37

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	SUPERTEX, INC.
	(Registrant)
Dated:  February 8, 2012
	By: /s/PHILLIP A. KAGEL
	Phillip A. Kagel
	Vice President, Finance and Chief Financial Officer
	(Principal Financial and Accounting Officer)

38

EX-31.1

Exhibit 31.1

Certifications Under Rule 13a-14(a)/l5d-14(a)

I, Henry C. Pao, certify that:

1.      I have reviewed this quarterly report on Form 10-Q of Supertex, Inc., a California corporation;

2.      Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;

3.      Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;

4.      The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and I have:

(a)       designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to me by others within those entities, particularly during the period in which this quarterly report is being prepared;

(b)   designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with GAAP;

(c)       evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusion about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)       disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.      The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing the equivalent function):

(a)       all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize, and report financial data and have identified for the registrant's auditors any material weaknesses in internal controls; and

(b)       any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Dated:  February 8, 2012	/s/HENRY C. PAO
	Henry C. Pao, Ph.D.
	President & Chief Executive Officer
	(Principal Executive Officer)

EX-31.2

Exhibit 31.2

Certifications Under Rule 13a-14(a)/l5d-14(a)

I, Phillip A. Kagel, certify that:

1.      I have reviewed this quarterly report on Form 10-Q of Supertex, Inc., a California corporation;

2.      Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;

3.      Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;

4.      The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and I have:

(a)       designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to me by others within those entities, particularly during the period in which this quarterly report is being prepared;

(b)   designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with GAAP;

(c)       evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusion about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)       disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.      The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing the equivalent function):

(a)       all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize, and report financial data and have identified for the registrant's auditors any material weaknesses in internal controls; and

(b)       any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Dated:  February 8, 2012	/s/PHILLIP A. KAGEL
	Phillip A. Kagel
	Vice President, Finance and Chief Financial Officer
	(Principal Financial and Accounting Officer)

EX-32.1

Exhibit 32.1

Statement of Chief Executive Officer under 18 U.S.C. Secion 1350

I, Henry C. Pao, the chief executive officer of Supertex, Inc., a California corporation (the "Company"), certify pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code, that to my knowledge:

(i) the quarterly report of the Company on Form 10-Q for the period ended December 31, 2011 , as filed with the Securities and Exchange Commission (the "Report"), fully complies with the requirements of Section 13(a) or 15(d), whichever is applicable, of the Securities Exchange Act of 1934, and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company at the dates and for the periods indicated.

Dated:  February 8, 2012	/s/HENRY C. PAO
	Henry C. Pao, Ph.D.
	President & Chief Executive Officer
	(Principal Executive Officer)

The material contained in this Exhibits 32.1 is not deemed "filed" with the SEC and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933 or the Securities Exchange Act of 1934, whether made before or after the date hereof and irrespective of any general incorporation language contained in such filing.

EX-32.2

Exhibit 32.2

Statement of Chief Financial Officer under 18 U.S.C. Section 1350

I, Phillip A. Kagel, the chief financial officer of Supertex, Inc., a California corporation (the "Company"), certify pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code, that to my knowledge:

(i) the quarterly report of the Company on Form 10-Q for the period ended December 31, 2011 , as filed with the Securities and Exchange Commission (the "Report"), fully complies with the requirements of Section 13(a) or 15(d), whichever is applicable, of the Securities Exchange Act of 1934, and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company at the dates and for the periods indicated.

Dated:  February 8, 2012	/s/PHILLIP A. KAGEL
	Phillip A. Kagel
	Vice President, Finance and Chief Financial Officer
	(Principal Financial and Accounting Officer)

The material contained in this Exhibit 32.2 is not deemed "filed" with the SEC and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933 or the Securities Exchange Act of 1934, whether made before or after the date hereof and irrespective of any general incorporation language contained in such filing.

XML

Inventories

9 Months Ended

Dec. 31, 2011

Inventories [Abstract]

Inventories

Note 4 - Inventories

The Company's inventories consist of high technology semiconductor devices and integrated circuits that are specialized in nature, subject to rapid technological obsolescence, and sold in a highly competitive industry.  Inventory balances at the end of each period are stated at the lower of cost (determined on a first-in, first-out basis) or net realizable value.

Inventories consist of (in thousands):

	December 31, 2011		April 2, 2011
Raw materials	$	1,345	$	1,786
Work-in-process		9,853		12,880
Finished goods		4,557		4,347
Finished goods at distributors and on consignment		1,127		1,587
Total Inventories	$	16,882	$	20,600

The Company wrote down excess and obsolete inventory totaling $1,471,000 and $2,946,000 for the three and nine months ended December 31, 2011 compared to $157,000 and $694,000 for the same periods of the prior fiscal year. The Company sold previously written-down inventory of $231,000 and $775,000 for the three and nine months ended December 31, 2011, respectively.  For the same periods of the prior fiscal year, such sales were $358,000 and $935,000, respectively.

XML

Cash and Cash Equivalents and Investments

9 Months Ended

Dec. 31, 2011

Cash and Cash Equivalents and Investments [Abstract]

Cash and Cash Equivalents and Investments

Note 3 - Cash and Cash Equivalents and Investments

The Company's cash equivalents consist primarily of investments in money market funds as follows (in thousands):

	December 31, 2011		April 2, 2011
Cash	$	4,541	$	8,377
Cash equivalents:
Money market funds		12,301		10,681
Government agency Bonds		-		4,500
Corporate bonds		-		253
Municipal bonds		-		151
Total cash and cash equivalents	$	16,842	$	23,962

The Company's portfolio of short-term and long-term investments is as follows (in thousands):

	December 31, 2011
	Amortized		Unrealized		Unrealized			Carrying
	Cost		Gain		Loss			Value
Short-term investments:
Trading securities:
Equity mutual funds related to NQDCP	$	7,986	$	-	$	-		$	7,986
Available-for-sale securities:
Municipal bonds		31,527		27		(17	)		31,537
Discount notes		1,250		-		-			1,250
Corporate bonds		38,497		25		(266	)		38,256
Government agency bonds		21,099		40		(3	)		21,136
Certificates of deposits		12,187		3		(4	)		12,186
Total short-term investments	$	112,546	$	95	$	(290	)	$	112,351
Long-term investments:
Available-for sale securities	$	28,050	$	-	$	(2,050	)	$	26,000

	April 2, 2011
	Amortized		Unrealized		Unrealized			Carrying
	Cost		Gain		Loss			Value
Short-term investments:
Trading securities:
Equity mutual funds related to NQDCP	$	8,157	$	-	$	-		$	8,157
Available-for-sale securities:
Municipal bonds		62,617		2		(2	)		62,617
Discount notes		3,998		-		-			3,998
Corporate bonds		27,968		-		(44	)		27,924
Government agency bonds		6,317		-		(1	)		6,316
Certificates of deposits		749		-		(1	)		748
Total short-term investments	$	109,806	$	2	$	(48	)	$	109,760
Long-term investments:
Available-for sale securities	$	32,750	$	-	$	(2,550	)	$	30,200

The Company's short-term and long-term investments by contractual maturity are as follows (in thousands):

	December 31, 2011		April 2, 2011
Short-term investments:
Trading securities:
Due in one year or less	$	7,986	$	8,157
Available-for-sale securities:
Due in one year or less		69,022		62,919
Due in one to two years		35,343		38,684
Total short-term investments	$	112,351	$	109,760
Long-term investment:
Available-for-sale securities at amortized cost:
Due after ten years	$	26,000	$	30,200

Short-term investments classified as trading securities consisted entirely of investments in mutual funds held by the Company's Non-Qualified Deferred Compensation Plan ("NQDCP"). Unrealized gains (losses) on trading securities are recorded in the Condensed Consolidated Statement of Income. Unrealized gain on trading securities was $411,000 for the three months ended December 31, 2011. For the nine months ended December 31, 2011, the unrealized loss on trading securities was $312,000. For the same periods of the prior fiscal year, the unrealized gain on trading securities were $273,000 and $457,000, respectively.

The Company's available-for-sale portfolio as of December 31, 2011 was comprised of municipal bonds, corporate bonds, government agency bonds, discount notes, certificates of deposits and ARS. Unrealized gains (losses) on available-for-sale securities are recorded in other comprehensive income as increases (declines) in fair values and are considered to be temporary.

During the three and nine months ended December 31, 2011, the Company disposed of short-term available-for-sale securities totaling $15,555,000 and $123,846,000 at par, compared to $11,985,000 and $77,957,000, respectively, for the same periods of the prior fiscal year.  The realized gains and losses of these transactions were immaterial.

The Company's ARS have contractual maturities between 20 and 30 years. They are in the form of auction rate bonds whose interest rates had historically been reset every thirty-five days through an auction process. At the end of each reset period, investors could sell or continue to hold the securities at par. These ARS held by the Company are backed by pools of student loans and are primarily guaranteed by the U.S. Department of Education. In addition, all the ARS held by the Company are rated by the major independent rating agencies as AAA.

ARS with a par value of $28,050,000 were classified as non-current assets and were presented as long-term investments on the Company's balance sheet as of December 31, 2011.

The Company has concluded that the decline in fair value of the ARS investments, as of December 31, 2011, is considered to be temporary in part due to the following:

●   these investments are of high credit quality and a significant portion of them is collateralized and is guaranteed by the U.S. Department of Education;

●   there have been no defaults on the ARS held by the Company as of December 31, 2011;

 ●   their AAA credit ratings have not been reduced as of December 31, 2011;

  ●   the Company has no intention to sell the securities below par value and it is more likely than not that the Company will not be required to sell the securities until their value returns to par; and

●   the Company received ARS redemptions at par value of $36,450,000, $19,250,000 and $12,150,000, respectively,in fiscal years 2011, 2010 and 2009. Additionally, during the nine months ended December 31, 2011, the Company received redemptions at par value totaling $4,700,000.

If uncertainties in the credit and capital markets continue or these markets deteriorate further, the Company may incur additional impairment to its ARS holdings. The Company will continue to monitor its ARS holdings and may be required to record an impairment charge through the income statement if the decline in fair value is determined to be other-than-temporary or the credit quality of its ARS holdings declines.

XML

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Dec. 31, 2011	Jan. 01, 2011
CONDENSED CONSOLIDATED STATEMENTS OF INCOME [Abstract]
Net sales	$ 14,066	$ 19,675	$ 49,084	$ 65,189
Cost of sales	8,708	9,341	26,132	29,121
Gross profit	5,358	10,334	22,952	36,068
Research and development	3,480	3,692	10,514	10,823
Selling, general and administrative	3,269	3,501	9,226	10,673
Total operating expenses	6,749	7,193	19,740	21,496
(Loss) income from operations	(1,391)	3,141	3,212	14,572
Interest income	251	172	737	589
Other income (expense), net	533	273	(170)	490
(Loss) income before provision for income taxes	(607)	3,586	3,779	15,651
(Benefit from) provision for income taxes	(703)	726	303	4,861
Net income	$ 96	$ 2,860	$ 3,476	$ 10,790
Net income per share
Basic	$ 0.01	$ 0.22	$ 0.28	$ 0.83
Diluted	$ 0.01	$ 0.22	$ 0.28	$ 0.83
Shares used in per share computation:
Basic	12,063	13,036	12,439	12,995
Diluted	12,066	13,079	12,450	13,054

XML

Organization and Basis of Presentation

9 Months Ended

Dec. 31, 2011

Organization and Basis of Presentation [Abstract]

Organization and Basis of Presentation

Note 1 - Organization and Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Supertex, Inc. ("Supertex," the "Company," "we," and "us") and its subsidiary have been prepared in accordance with generally accepted accounting principles ("GAAP") in the United States of America.  This financial information reflects all adjustments, which are, in the opinion of the Company's management, of normal recurring nature and necessary to state fairly the balance sheet as of December 31, 2011; the statements of income for the three and nine months ended December 31, 2011 and January 1, 2011; and the statements of cash flows for the nine months ended December 31, 2011 and January 1, 2011.  The April 2, 2011 balance sheet was derived from the audited financial statements included in the fiscal 2011 Annual Report on Form 10-K, but does not include all disclosures required by GAAP in the United States of America.  All significant intercompany transactions and balances have been eliminated.

The condensed consolidated financial statements included herein have been prepared by the Company, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC").  Certain information and footnote disclosures normally included in these financial statements have been condensed or omitted pursuant to such rules and regulations, although the Company believes the disclosures which are made are adequate to make the information presented not misleading.  These financial statements should be read in conjunction with the audited consolidated financial statements of Supertex, Inc. for the fiscal year ended April 2, 2011, which were included in the fiscal 2011 Annual Report on Form 10-K.

The preparation of financial statements in conformity with GAAP in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosures of contingent assets and liabilities at the date of the financial statements as well as the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates, and such differences may be material to the financial statements. The results of operations for the three and nine months ended December 31, 2011 are not necessarily indicative of the results to be expected for any future periods.

The Company reports on a fiscal year basis and it operates and reports based on quarterly periods ending on the Saturday nearest to the end of the applicable calendar quarter, except in a 53-week fiscal year, in which case the additional week falls into the fourth quarter of the fiscal year.  Fiscal 2012 will be a 52-week year.  The three months ended December 31, 2011 and January 1, 2011, both consist of thirteen weeks.

Revision to previously issued financial statements

During fiscal year 2012, the Company identified that it had not been appropriately classifying the non-cash amortization of premiums paid on debt investments within the Consolidated Statement of Cash Flows.  The Company incorrectly reflected the amortization as a cash inflow from investing activities rather than a reconciling item in arriving at net cash provided by operating activities. The Company has determined to revise its Consolidated Statements of Cash Flows to correct this error. Accordingly, the Company has revised the accompanying Consolidated Statement of Cash Flows for the nine months ended January 1, 2011 and will revise the Consolidated Statements of Cash Flow for the fiscal years ended April 3, 2010 and April 2, 2011, for the three months ended July 2, 2011 and for the six months ended October 1, 2011 the next time they are filed. These misclassifications did not impact the Consolidated Statements of Income and the Consolidated Balance Sheets.  The revisions are not material to previously issued financial statements. The amounts of the revisions are shown in the table below.

	Operating Activities Impact						Investing Activities Impact
(in thousands)	As reported		Adjustment		As revised		As reported			Adjustment			As revised
2010:
Q4 YTD	$	8,541	$	1,437	$	9,978	$	(23,872	)	$	(1,437	)	$	(25,309	)
2011:
Q1		7,047		605		7,652		(5,083	)		(605	)		(5,688	)
Q2 YTD		11,243		1,371		12,614		(5,581	)		(1,371	)		(6,952	)
Q3 YTD		12,583		1,554		14,137		(264	)		(1,554	)		(1,818	)
Q4 YTD		14,450		2,305		16,755		3,086			(2,305	)		781
2012:
Q1		2,411		946		3,357		11,498			(946	)		10,552
Q2 YTD	$	3,061	$	1,647	$	4,708	$	(9,432	)	$	(1,647	)	$	(11,079	)

Recent Accounting Pronouncements

In June 2011, Financial Accounting Standard Board ("FASB") issued new authoritative guidance regarding Presentation of Comprehensive Income.  This amendment attempts to improve comparability, consistency, and transparency of financial reporting and to increase the prominence of items reported in other comprehensive income.  In order to facilitate convergence with International Financial Reporting Standards ("IFRS"), FASB has decided to eliminate the option to present components of other comprehensive income as part of the statement of changes in stockholders' equity.  Also, this amendment requires that all non-owner changes in stockholders' equity be presented in a single continuous statement of comprehensive income or in two separate but consecutive statements.  This amendment is effective for interim and annual periods beginning after December 15, 2011 (the fiscal quarter ending March 31, 2012 for the Company) and is applied retrospectively.  On October 21, 2011, the FASB proposed a deferral of the requirement to present reclassifications of other comprehensive income on the face of the income statement. Companies would still be required to adopt all other requirements contained in the guidance. The Company is currently assessing the potential effect to its Consolidated Financial Statements in applying this guidance.

In May 2011, the FASB amended fair value measurement and disclosure guidance to achieve convergence with IFRS. The amended guidance clarified existing fair value measurement guidance, revised certain measurement guidance and expanded the disclosure requirements concerning Level 3 fair value measurements. The guidance is effective for interim and annual periods beginning after December 15, 2011 (the fiscal quarter ending March 31, 2012 for the Company). The adoption of this guidance is not expected to have a material effect on the Company's consolidated financial statements.

XML

Fair Value

9 Months Ended

Dec. 31, 2011

Fair Value [Abstract]

Fair Value

Note 2 - Fair Value

The Company measures its cash equivalents, short-term investments and long-term investments at fair value. Fair value is defined as the price that would be received from selling an asset and paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining fair value measurements for assets and liabilities required or permitted to be recorded at fair value, the Company considers the principal or most advantageous market in which it would transact and considers assumptions that market participants would use when pricing the asset or liability, such as inherent risk, transfer restrictions, and risk of nonperformance.

A three-tiered fair value hierarchy has been established as the basis for considering the above assumptions and determining the inputs used in the valuation methodologies in measuring fair values.  The three levels of inputs are defined as follows:

Level 1 - Unadjusted quoted market prices for identical assets or liabilities in active markets that the Company has the ability to access.

Level 2 - Quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in inactive markets.

Level 3 - Valuations based on models where significant inputs are not observable. The unobservable inputs reflect the Company's own assumptions about the assumptions that market participants would use.

The Company maximizes the use of observable inputs and minimizes the use of unobservable inputs. If a financial instrument uses an input that is significant to the fair value calculation, the instrument will be categorized based upon the lowest level of input that is significant to the fair value calculation.  The Company's financial assets and liabilities measured at fair value on a recurring basis include cash equivalents and investment securities, both short-term and long-term.

The Company's long-term investments consist entirely of AAA rated auction rate securities ("ARS"), which are collateralized by student loans. Due to the lack of availability of observable market quotes for the Company's investment portfolio of these ARS, the fair value was estimated based on a discounted cash flow model and included a discount factor for illiquidity of the ARS market. The assumptions used in the discounted cash flow model include estimates for interest rates, timing and amounts of cash flows, liquidity of the underlying security, expected holding periods, and contractual terms of the security. In light of the current market condition for ARS, the Company developed different scenarios for the significant inputs used in the discounted cash flow model, including but not limited to a liquidity discount of 125 and 150 basis points per year for the current ARS market, and the timing of recovery of the ARS market from three to five years. The estimated fair value of those of the Company's ARS classified as level 3 assets ranges from $25,600,000 to $26,700,000. The Company believes this estimated range of fair values of its ARS is appropriate taking into consideration historical ARS market data, the possibility of development of a secondary market for ARS, recent market participant behavior, and public policy implications associated with the student loan based ARS market. The Company concluded that the fair value of those of its ARS which are classified as level 3 assets was $26,000,000 as of December 31, 2011 net of a temporary impairment of $2,050,000 to par value.

The Company also considered the quality, amount of collateral, and US government guarantee for the ARS and looked to other marketplace transactions and information received from other third party brokers in order to assess whether the fair value based on the discounted cash flow model is reasonable. The valuation of the Company's investment portfolio is subject to uncertainties that are difficult to predict. Factors that may affect the Company's valuation include changes to credit ratings of the securities as well as the underlying assets supporting those securities, rates of default of the underlying assets, underlying collateral values, discount rates, counterparty risk and ongoing strength, and quality of market credit and liquidity. Significant inputs to the investment valuations are unobservable in the active markets and therefore the Company's ARS are classified as Level 3 in the hierarchy.

The following tables summarize assets and liabilities measured at fair value on a recurring basis as of December 31, 2011 and April 2, 2011, excluding accrued interest (in thousands):

	December 31, 2011
	Fair value measurements
Assets	Level 1			Level 2		Level 3		Total
Money market funds	$	12,301	(2)	$	-	$	-	$	12,301
Municipal bonds		-			31,537		-		31,537
Discount notes		-			1,250		-		1,250
Corporate bonds		-			38,256		-		38,256
Government agency bonds		-			21,136		-		21,136
Certificate of deposits		-			12,186		-		12,186
Equity mutual funds related to NQDCP (1)		7,986			-		-		7,986
Long-term investments in ARS		-			-		26,000		26,000
Total assets at fair value	$	20,287		$	104,365	$	26,000	$	150,652
Liabilities
Obligation related to NQDCP (1)	$	7,986		$	-	$	-	$	7,986

	April 2, 2011
	Fair value measurements
Assets	Level 1			Level 2			Level 3		Total
Money market funds	$	10,681	(2)	$	-		$	-	$	10,681
Municipal bonds		-			62,768	(3)		-		62,768
Discount notes		-			3,998			-		3,998
Corporate bonds		-			28,177	(4)		-		28,177
Government agency bonds		-			10,816	(5)		-		10,816
Certificate of deposits		-			748			-		748
Equity mutual funds related to NQDCP (1)		8,157			-			-		8,157
Long-term investments in ARS		-			-			30,200		30,200
Total assets at fair value	$	18,838		$	106,507		$	30,200	$	155,545
Liabilities
Obligation related to NQDCP (1)	$	8,157		$	-		$	-	$	8,157

_________________________

(1)Non-qualified Deferred Compensation Plan.

(2) The money market funds of $12,301,000 and $10,681,000 were classified as cash equivalents as of December 31, 2011 and April 2, 2011, respectively.

(3) Included in municipal bonds was $151,000, which was classified as cash equivalents as of April 2, 2011.

(4) Included in corporate bonds was $253,000, which was classified as cash equivalents as of April 2, 2011.

(5) Included in government agency bonds was $4,500,000, which was classified as cash equivalents as of April 2, 2011.

The following table summarizes the change in fair value of the Company's level 3 assets during the nine months ended December 31, 2011 (in thousands):

Fair value measurements of assets using level 3 inputs	Long-term investments in ARS
Balance as of April 2, 2011	$	30,200
Redemption of investments in ARS		(4,700	)
Reduction in unrealized loss recorded in "Accumulated other comprehensive loss"		500
Balance as of December 31, 2011	$	26,000

During the nine months ended December 31, 2011, the Company received $4,700,000 relating to ARS with a carrying value at the time of $4,357,000 redeemed at par value. See Note 3 for further discussion of the Company's ARS.

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Apr. 02, 2011
Current Assets:
Cash and cash equivalents	$ 16,842	$ 23,962
Short-term investments	112,351	109,760
Trade accounts receivable, net	6,441	8,100
Inventories	16,882	20,600
Prepaid expenses and other current assets	5,602	2,975
Prepaid income taxes	5,373	6,461
Deferred income taxes	7,278	7,228
Total current assets	170,769	179,086
Long-term investments	26,000	30,200
Property, plant and equipment, net	5,162	5,708
Other assets	563	622
Long-term deferred income taxes	4,905	4,980
Total assets	207,399	220,596
Current Liabilities:
Trade accounts payable	2,640	3,283
Accrued salaries and employee benefits	11,823	12,430
Other accrued liabilities	665	772
Deferred revenue	2,545	3,664
Income taxes payable	134	2,264
Total current liabilities	17,807	22,413
Income taxes payable, noncurrent	4,943	4,974
Other accrued liabilities, noncurrent	295	290
Total liabilities	23,045	27,677
Commitments and contingencies (Note 9)	0	0
Preferred stock, no par value -- 10,000 shares authorized; none issued and outstanding	0	0
Common stock, no par value -- 30,000 shares authorized; issued and outstanding 12,056 shares as of December 31, 2011 and 12,808 shares as of April 2, 2011	67,623	68,499
Accumulated other comprehensive loss	(1,456)	(1,683)
Retained earnings	118,187	126,103
Total shareholders' equity	184,354	192,919
Total liabilities and shareholders' equity	$ 207,399	$ 220,596

XML

Significant Customers

9 Months Ended

Dec. 31, 2011

Significant Customers [Abstract]

Significant Customers

Note 12 - Significant Customers

The Company sells its products to OEMs through its direct sales and marketing personnel, and through its independent sales representatives and distributors. Revenue from sales to distributors and the related cost of sales are recognized only upon resale to end-user customers, that is on a sell-through basis.

A major medical equipment company accounted for approximately 11% of net sales for both the three and nine months ended December 31, 2011. For both the three and nine months ended January 1, 2011, the same medical equipment company accounted for approximately 12% of net sales.  Nearly all of the sales to this medical equipment company were through distributors and contract manufacturers. Also, a telecommunication supply chain company accounted for approximately 11% of net sales for the three months ended January 1, 2011.

There were no other customers that the Company believes accounted for more than 10% of the Company's net sales for the three and nine months ended December 31, 2011 and January 1, 2011.

XML

Document And Entity Information (USD $)	9 Months Ended
	Dec. 31, 2011	Feb. 03, 2012	Oct. 01, 2010
Entity Registrant Name	SUPERTEX INC
Entity Central Index Key	0000730000
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	No
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 247,183,092
Entity Common Stock, Shares Outstanding		12,061,218
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q3
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 31, 2011

XML

CONDENSED CONSOLIDATED BALANCE SHEETS Parenthetical (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2011	Apr. 02, 2011
Shareholders' equity:
Preferred stock, no par value (in dollars per share)	$ 0	$ 0
Preferred stock, authorized (in shares)	10,000	10,000
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	30,000	30,000
Common stock, issued (in shares)	12,056	12,808
Common stock, outstanding (in shares)	12,056	12,808

XML

Income Taxes

9 Months Ended

Dec. 31, 2011

Income Taxes [Abstract]

Income Taxes

Note 7 - Income Taxes

The benefit from income taxes for the three months ended December 31, 2011 was $703,000 on loss before tax of $607,000 at the effective tax benefit rate of 116% compared to a provision for income taxes of $726,000 on income before tax of $3,586,000 at the effective tax rate of 20% in the third quarter of the prior fiscal year. The year-over-year quarterly change in estimated tax rate was primarily due to a pre-tax loss compared to a pre-tax profit last year and changes in where the Company expects its income and losses to be generated this year between its US and Hong Kong entities which have different tax rates.

The provision for income taxes for the nine months ended December 31, 2011 was $303,000 on income before tax of $3,779,000 at the effective tax rate of 8% compared to $4,861,000 on income before tax of $15,651,000 at the effective tax rate of 31% for the same period in the prior fiscal year. The year-over-year decrease in estimated tax rate for the nine-month period was primarily due to changes in where the Company expects its income and losses to be generated this year between its US and Hong Kong entities which have different tax rates and reductions in state taxes, partially offset by the company's inability to claim the U.S.  manufacturing tax deduction due to a limitation in income.

The income tax provision for interim periods reflects the Company's computed estimated annual effective tax rate and differs from the taxes computed at the federal and state statutory rates primarily due to the effects of foreign rate differentials, R&D tax credits, non-deductible stock-based compensation expense, tax exempt interest income and tax contingencies.

During the nine months ended December 31, 2011, the liability for uncertain income tax positions excluding accrued interest and penalties decreased from $4,052,000 to $4,044,000. Of the total $4,044,000 of unrecognized tax benefits, $3,169,000 represents the amount that, if recognized, would favorably affect the Company's effective income tax rate in a future period. The Company cannot conclude on the range of cash payments that will be made within the next twelve months associated with its uncertain tax positions.

The Company records interest and penalties related to unrecognized tax benefits in income tax expense. On December 31, 2011, the Company had approximately $562,000 accrued for estimated interest and $414,000 for estimated penalties related to uncertain tax positions. For the nine months ended December 31, 2011, the Company recorded estimated interest of $89,000 and estimated penalties of $5,000.

The balance of unrecognized income tax benefits, including accrued interest and accrued penalties on December 31, 2011, was approximately $1,259,000 related to tax positions for which it is reasonably possible that the statute of limitations will expire in various jurisdictions within the next twelve months.

The Company's major tax jurisdictions are the United States federal, State of California and Hong Kong and the Company's income tax returns are no longer subject to examination by these taxing authorities for fiscal years before 2002.

XML

Stock-Based Compensation

9 Months Ended

Dec. 31, 2011

Stock-Based Compensation [Abstract]

Stock-Based Compensation

Note 6 - Stock-Based Compensation

The employee stock-based compensation expense for the three and nine months ended December 31, 2011 was $821,000 and $2,243,000, respectively, compared to $795,000 and $2,372,000 for the same periods of the prior fiscal year.

During the three and nine months ended December 31, 2011, the Company granted options with an estimated total grant date fair value of $348,000 and $2,924,000, respectively. For the same periods last fiscal year, the Company granted options with an estimated grant date fair value of $79,000 and $2,517,000, respectively. As of December 31, 2011, the unrecorded stock-based compensation related to stock options was $6,316,000 (net of estimated forfeitures) and will be recognized over an estimated weighted average amortization period of approximately 2 years.

The Company's shareholders approved the adoption of the 2001 Stock Option Plan (the "2001 Plan") and the reservation of 2,000,000 shares of common stock for issuance under 2001 Plan at the August 17, 2001 annual meeting of shareholders. Options granted under the 2001 Plan were granted at the fair market value of the Company's common stock on the date of grant and generally expired seven years from the date of grant or thirty days after termination of service, whichever occurs first.  The options generally were exercisable beginning one year from date of grant and generally vest ratably over a five-year period. On August 24, 2006, the Company's board of directors approved a change in grant policy of the 2001 Plan to only grant non-statutory stock options to better align the Company's compensation plan to employee incentives and to Company objectives. On August 17, 2007, the Company's board of directors approved that all future stock option grants would have a ten-year term, which is within the guidelines of the Company's 2001 Plan, subject to earlier expiration thirty days after termination of service. As of August 14, 2009, no further options may be granted under the 2001 Plan.

The Company's shareholders approved the adoption of the 2009 Equity Incentive Plan (the "2009 Plan") at the August 14, 2009 annual meeting for shareholders. Under the 2009 Plan, the total number of shares of Company common stock reserved for issuance consists of 1,000,000 shares plus (1) the 159,509 shares which remained authorized for issuance under the 2001 Plan but which were not subject to outstanding stock awards as of August 14, 2009, and (2) those of the 1,440,400 shares, subject to stock awards outstanding under the 2001 Plan as of August 14, 2009, that terminate prior to exercise and would otherwise be returned to the share reserves under the 2001 Plan, with the total shares in addition to the 1,000,000 shares thus being up to a maximum of 1,599,909 shares. The 2009 Plan allows the Company to continue its prior option practices under the 2001 Plan to grant non-statutory options to key employees with an exercise price equal to the fair market value of the Company's stock on the date of grant. The Company's options typically have a term of ten years and vest in 20% installments on each of the first five anniversaries of the date of grant. The 2009 Plan also provides the Company with the flexibility in designing equity incentives, including restricted stock awards, stock appreciation rights, restricted stock unit awards, performance stock awards, and performance cash awards.

The following table summarizes the activities under the 2001 and 2009 Plans for the nine months ended December 31, 2011:

				Options Outstanding
	Available for Grant			Number of Shares			Weighted Average Exercise Price
Balance, April 2, 2011		977,849			1,454,622		$	27.57
Granted		(370,580	)		370,580			20.10
Exercised		-			(71,580	)		17.06
Canceled		53,360			(53,360	)		27.35
Balance, December 31, 2011		660,629			1,700,262		$	26.39

The weighted average fair value of options, as determined under the authoritative guidance for stock compensation, granted under the 2009 Plan during the three and nine months ended December 31, 2011 were $6.70 and $7.89 per share, respectively, compared to $10.55 and $10.13 per share during the same periods of the prior fiscal year.  The total intrinsic value of options exercised (which is the amount by which the stock price exceeded the exercise price of the option on the date of the exercise) during the three and nine months ended December 31, 2011 was $2,000 and $170,000 respectively.  During the three and nine months ended December 31, 2011, the amounts of cash received from employees as a result of employee stock option exercises were $22,000 and $1,221,000, respectively.

The options outstanding and exercisable at December 31, 2011, under the 2001 and 2009 Plans are in the following exercise price ranges:

Options Outstanding											Options Exercisable
Range of Exercise Prices					Number Outstanding		Weighted-Average Remaining Contractual Life (Years)		Weighted-Average Exercise Price		Number Outstanding		Weighted-Average Exercise Price
$	17.39	-	$	19.99		281,020		8.87	$	19.17		31,420	$	18.15
	20.00	-		24.99		626,102		7.79		21.44		230,962		21.05
	25.00	-		29.99		313,380		6.82		27.03		164,596		27.13
	30.00	-		34.99		236,060		2.95		33.77		217,660		33.76
	35.00	-		39.99		90,800		5.46		35.83		76,640		35.83
	40.00	-		44.99		134,900		1.83		40.90		119,280		40.88
	45.00	-		46.92		18,000		1.92		46.92		18,000		46.92
$	17.39	-	$	46.92		1,700,262		6.46	$	26.39		858,558	$	29.95

The total intrinsic value of options outstanding and options exercisable as of December 31, 2011 were $80,000 and $38,000, respectively.

2000 Employee Stock Purchase Plan ("ESPP").Under the ESPP, eligible employees may elect to withhold up to 20% of their cash compensation to purchase shares of the Company's common stock at a price equal to 95% of the market value of the stock at the time of purchase, which is at the end of the six-month offering period.  An eligible employee may purchase no more than 500 shares during any six-month offering period. For the three and nine months ended December 31, 2011, the amounts of cash received from employees as a result of ESPP purchases were $70,000 and $159,000, respectively, compared to $85,000 and $178,000 for the same periods of the prior fiscal year.

XML

Common Stock Repurchase

9 Months Ended

Dec. 31, 2011

Common Stock Repurchase [Abstract]

Common Stock Repurchase

Note 10 - Common Stock Repurchase

Share repurchase activities for the three and nine months ended December 31, 2011 and January 1, 2011 are as follows:

	Three Months Ended				Nine Months Ended
	December 31, 2011		January 1, 2011		December 31, 2011		January 1, 2011
Number of shares repurchased		118,000		-		832,000		-
Cost of shares repurchased	$	2,077,000	$	-	$	15,897,000	$	-
Average price per share	$	17.61	$	-	$	19.11	$	-

In January 2011, the Board of Directors designated $60,000,000 of its cash, cash equivalents and investments for a major stock repurchase during the period from January 2011 through March 2013, and accordingly, increased the Company's share repurchase program from approximately 556,000 shares to 2,500,000 shares. The amended repurchase program has no expiration date except when an aggregate of 2,500,000 shares have been repurchased, either in the open market or through private transactions. Under this program, cumulatively the Company has repurchased approximately 1,105,000 shares for $22,164,000 as of December 31, 2011.

Since the inception of the Company's initial share repurchase program in 1992 through December 31, 2011, the Company has repurchased a total of approximately 3,449,000 shares of the common stock for an aggregate cost of $58,715,000 under its share repurchase programs. Upon their repurchase, shares are restored to the status of authorized but unissued shares. As of December 31, 2011, there were approximately 1,395,000 shares authorized for future repurchase under the Company's current repurchase program.

XML

Net Income per Share

9 Months Ended

Dec. 31, 2011

Net Income per Share [Abstract]

Net Income per Share

Note 8 - Net Income per Share

Basic earnings per share ("EPS") is computed as net income divided by the weighted average number of common shares outstanding for the period.  Diluted EPS reflects the potential dilution that could occur from common shares that may be issued through stock options and ESPP only, since the Company does not have warrants or any other convertible securities outstanding.  A reconciliation of the numerator and denominator of basic and diluted earnings per share is provided as follows (in thousands, except per share amounts):

	Three Months Ended				Nine Months Ended
	December 31, 2011		January 1, 2011		December 31, 2011		January 1, 2011
BASIC:
Net income	$	96	$	2,860	$	3,476	$	10,790
Weighted average shares outstanding for the period		12,063		13,036		12,439		12,995
Net income per share	$	0.01	$	0.22	$	0.28	$	0.83
DILUTED:
Net income	$	96	$	2,860	$	3,476	$	10,790
Weighted average shares outstanding for the period		12,063		13,036		12,439		12,995
Effect of dilutive securities: stock options and ESPP		3		43		11		59
Total		12,066		13,079		12,450		13,054
Net income per share	$	0.01	$	0.22	$	0.28	$	0.83

Options to purchase 1,652,846 shares of the Company's common stock at an average price of $26.66 per share, and 1,512,980 shares at an average price of $27.36 per share for the three and nine months ended December 31, 2011, respectively, were outstanding but were not included in the computation of diluted earnings per share because their effect would have been anti-dilutive.

For the three and nine months ended January 1, 2011, options to purchase 1,374,973 shares of the Company's common stock at an average price of $28.37 per share, and 1,274,120 shares at an average price of $28.90 per share, respectively, were outstanding but were not included in the computation of diluted earnings per share because their effect would have been anti-dilutive.

XML

Commitments and Contingencies

9 Months Ended

Dec. 31, 2011

Commitments and Contingencies [Abstract]

Commitments and Contingencies

Note 9 - Commitments and Contingencies

Indemnification

As is customary in the Company's industry, the Company has agreed to defend certain customers, distributors, suppliers, and subcontractors against certain claims which third parties may assert that its products allegedly infringe on certain of their intellectual property rights, including patents, trademarks, trade secrets, or copyrights.  The Company has agreed to pay certain amounts of any resulting damage awards and typically has the option to replace any infringing product with non-infringing product.  The terms of these indemnification obligations are generally perpetual from the effective date of the agreement.  In certain cases, there are limits on and exceptions to the Company's potential liability for indemnification relating to intellectual property infringement claims.  The Company cannot estimate the amount of potential future payments, if any, that it might be required to make as a result of these agreements.  To date, the Company has not paid any damage awards nor has it been required to defend any claims related to its indemnification obligations, and accordingly, it has not accrued any amounts for indemnification obligations.  However, there can be no assurance that the Company will not have any financial exposure under those indemnification obligations in the future.

Legal Proceedings

From time to time the Company is subject to possible claims or assessments from third parties arising in the normal course of business.  Management has reviewed such possible claims and assessments with the Company's outside legal counsel and believes that it is unlikely that they will result in any material adverse effect on the Company's financial condition, results of operations, or cash flows.  The Company is not currently involved in any legal proceeding that it believes will materially and adversely affect its business, financial condition, results of operations or cash flows.

The Company engaged in certain export-related activities consisting of having one of the Company's integrated circuits shipped to assemblers and to its wholly-owned subsidiary in Hong Kong for assembly and testing. Upon realizing that these activities may have inadvertently violated the International Traffic in Arms Regulations ("ITAR") and the Arms Export Control Act, the Company investigated the facts and circumstances and voluntarily disclosed them to the U.S. Department of State. The U.S. Department of State notified the Company in September 2011, that although it had determined that these activities violated the ITAR, it was closing the case without fine and without taking further action, while reserving the right to re-open the case if the circumstances warrant. The U.S. Department of State cautioned the Company to take actions to strengthen its compliance processes and procedures, which the Company believes it has done. Among other measures, since becoming aware of these ITAR issues, the Company has moved the assembly and testing of these products to ITAR-compliant onshore facilities.

Product Return and Warranty Reserves

The Company's standard policy is to accept the return of defective parts for credit from non-distributor customers for a period of 90 days from date of shipment. This period may be extended in certain cases. The Company records estimated product returns as a reduction to revenue in the same period as the related revenues are recorded. These estimates are based on historical experience, analysis of outstanding returned material authorizations and allowance authorization data.

The reductions to revenue for estimated product returns for the three and nine months ended December 31, 2011 and January 1, 2011 are as follows (in thousands):

Description	Balance at Beginning of Period		Charge(1)		Deductions and Other			Balance at End of Period
Three months ended December 31, 2011	$	189	$	3	$	(20	)	$	172
Three months ended January 1, 2011	$	322	$	144	$	(209	)	$	257
Nine months ended December 31, 2011	$	234	$	19	$	(81	)	$	172
Nine months ended January 1, 2011	$	217	$	488	$	(448	)	$	257

___________________

(1) Represent amounts charged to the allowance for sales returns.

While the Company's sales returns are historically within the allowance established, it cannot guarantee that it will continue to experience the same return rates that it has had in the past.  Any significant increase in product failure rates and the resulting sales returns could have a material adverse effect on the operating results for the period or periods in which such returns materialize.

For sales through distributors, the Company's policy is to replace under warranty defective products at its own expense for a period of 90 days from date of shipment. This period may be extended in certain cases. This liability is limited to replacement of the product along with freight and delivery costs. In certain cases, the Company may pay for rework.

The Company reserves for estimated warranty costs in the same period as the related revenues are recorded. The estimate is based on historical expenses and is recorded as cost of sales. The warranty reserve was $44,000 as of December 31, 2011. Such amount was $48,000 as of April 2, 2011.

Operating Lease Obligations

The Company's future minimum lease payments under non-cancelable operating leases as of December 31, 2011 are as follows (in thousands):

Payment Due by Year (12 month increments)	Operating Lease
Less than 1 year	$	848
2 years		693
3 years		658
4 years		634
5 years		213
	$	3,046

The Company leases facilities under non-cancelable lease agreements expiring at various times through April 2016.  Rental expense for the three and nine months ended December 31, 2011 amounted to $262,000 and $808,000, respectively, compared to $266,000 and $789,000 for the same periods of last fiscal year.

XML

Segment Information

9 Months Ended

Dec. 31, 2011

Segment Information [Abstract]

Segment Information

Note 11 - Segment Information

The Company operates in one reportable segment comprising the design, development, manufacturing and marketing of high voltage semiconductor devices including analog and mixed signal integrated circuits.  The Company's chief operating decision maker, who is currently the Company's chief executive officer, reviews financial information presented on a consolidated basis for purposes of making operating decisions and assessing financial performance.

The Company's principal markets are in Asia, the United States, and Europe.  Below is a summary of sales by major geographic area for the three and nine months ended December 31, 2011 and January 1, 2011 (in thousands):

	Three Months Ended				Nine Months Ended
Net Sales	December 31, 2011		January 1, 2011		December 31, 2011		January 1, 2011
United States	$	5,310	$	5,238	$	16,881	$	17,774
China		3,358		4,626		12,440		17,254
Asia (excluding China and Singapore)		2,451		3,877		8,016		13,596
Singapore		1,662		1,854		6,863		6,308
Europe		1,221		3,994		4,633		9,780
Other		64		86		251		477
Net Sales	$	14,066	$	19,675	$	49,084	$	65,189

Net property, plant and equipment by country as of December 31, 2011 and April 2, 2011 are as follows (in thousands):

	December 31, 2011		April 2, 2011
United States	$	4,178	$	4,525
Hong Kong		984		1,183
Property, plant and equipment, net	$	5,162	$	5,708

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2011	Jan. 01, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 3,476	$ 10,790
Non-cash adjustments to net income:
Depreciation and amortization	1,463	1,718
Provision for doubtful accounts and sales returns	8	467
Provision for excess and obsolete inventories	2,946	694
Deferred income taxes	(99)	734
Stock-based compensation	2,243	2,372
Tax benefit related to stock-based compensation plans	6	106
Excess tax benefit related to stock-based compensation	0	(5)
Unrealized loss (gain) from short-term investments, categorized as trading	312	(457)
Amortization of premium on short-term investments	2,266	1,554
Loss on disposal of property, plant and equipment	1	1
Changes in operating assets and liabilities:
Trade accounts receivable	1,651	(342)
Inventories	772	(5,308)
Prepaid expenses and other assets	(2,568)	111
Prepaid income taxes	1,088	(1,780)
Trade accounts payable and accrued expenses	(1,492)	829
Deferred revenue	(1,119)	(137)
Income taxes payable	(2,161)	2,790
Net cash provided by operating activities	8,793	14,137
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property, plant and equipment	(778)	(876)
Purchases of investments	(129,217)	(99,261)
Sales of investments	67,181	17,374
Maturities and redemptions of investments	61,418	80,945
Net cash used in investing activities	(1,396)	(1,818)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from exercise of stock options and employee stock purchase plan	1,380	2,277
Stock repurchases	(15,897)	0
Excess tax benefit related to stock-based compensation	0	5
Net cash (used in) provided by financing activities	(14,517)	2,282
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(7,120)	14,601
CASH AND CASH EQUIVALENTS:
Beginning of period	23,962	10,153
End of period	16,842	24,754
Supplemental cash flow disclosures:
Income taxes paid, net of refunds	$ 4,600	$ 2,092

XML

Comprehensive Income

9 Months Ended

Dec. 31, 2011

Comprehensive Income [Abstract]

Comprehensive Income

Note 5 - Comprehensive Income

The components of the Company's comprehensive income for the three and nine months ended December 31, 2011 and January 1, 2011 are as follows (in thousands):

	Three Months Ended				Nine Months Ended
	December 31, 2011		January 1, 2011		December 31, 2011		January 1, 2011
Net income	$	96	$	2,860	$	3,476	$	10,790
Unrealized gain on available-for-sale investments, net of taxes		89		711		227		1,964
Comprehensive income	$	185	$	3,571	$	3,703	$	12,754

As of December 31, 2011, the total unrealized loss on available-for-sale investments amounted to $2,245,000, which was recorded in accumulated other comprehensive loss, net of tax of $789,000. As of January 1, 2011, the total unrealized loss on available-for-sale investments amounted to $987,000, which was recorded in accumulated other comprehensive loss, net of tax of $385,000.