8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of

The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):   April 18, 2012

SUPERTEX, INC.

(Exact name of registrant as specified in its charter)

California	0-12718	94-2328535
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

1235 Bordeaux Drive, Sunnyvale, California	94089
(Address of principal executive offices)	(Zip Code)

Registrant's telephone number, including area code 408-222-8888

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

[ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

TABLE OF CONTENTS

Item 2.02   Results of Operations and Financial Condition.

Item 9.01   Financial Statements and Exhibits.

Signatures

 Item 2.02.    Results of Operations and Financial Condition.

On April 18, 2012, Supertex, Inc. (the "Company") announced via news release updated estimated results for its fiscal 2012 fourth quarter ended March 31, 2012.  The full text of the news release issued in connection with that announcement is attached as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in Item 2.02 and Exhibit 99.1 of this Current Report on Form 8-K shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange Act") or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01    Financial Statements and Exhibits.

(d)  Exhibits.

 Exhibit 99.1, the Company's News Release dated April 18, 2012, is furnished pursuant to Item 2.02 of Form 8-K.

SIGNATURES

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 hereunto duly authorized.

		Supertex, Inc
		(Registrant)
Date: April 18, 2012	By	/s/ Phillip A. Kagel
	Name	Phillip A. Kagel
	Title	Vice President, Finance and Chief Financial Officer

Exhibit Index

Exhibit                                Exhibit Description

Exhibit 99.1 News Release dated April 18, 2012, is furnished pursuant to Item 2.02 of Form 8-K.

EX-99.1 CHARTER

Supertex, Inc.	News Release
FOR IMMEDIATE RELEASE	Corporate Headquarters:
	Dr. Henry C. Pao
	President & CEO
	408/222-8888

Supertex Updates Fiscal Fourth Quarter Guidance and Schedules Earnings Release and Conference Call

Sunnyvale, CA (April 18, 2012) - Supertex, Inc. (NASDAQ GS: SUPX) today announced that it expects net sales for the fourth fiscal quarter, ended March 31, 2012, to be in the range of $16,200,000 to $16,500,000. This represents a sequential increase of 15.2% to 17.3% from the third fiscal quarter sales of $14,066,000, and an approximately 16% increase over the previous flat sales guidance. Gross margin is expected to be 45% to 48%, higher than the third fiscal quarter gross margin of 38% and the prior guidance of the low 40% range, primarily due to higher than anticipated sales.

The Company plans to release its fiscal fourth quarter and 2012 year-end earnings on May 9, 2012, and to host a conference call at 2:30 p.m. PDT (5:30 p.m. EDT) on May 9, 2012, following the earnings release.  Dr. Henry C. Pao, President and Chief Executive Officer, and CFO, Phil Kagel will present an overview and analysis of the fiscal fourth quarter and year-end results, discuss current business conditions, and then respond to questions.

The call will be available live for any interested party by dialing 800-862-9098 (domestic) or 785-424-1051 (toll, international) 5 minutes before the scheduled start time. A recorded replay will be available shortly after the call as a downloadable .mp3 file at http://www.supertex.com/company_ir.html until 11:59 p.m. EDT, June 9, 2012.

Forward-Looking Statements:

The industry in which we compete is characterized by extreme rapid changes in technology and frequent new product introductions. We believe that our long-term growth will depend largely on our ability to continue to enhance existing products and to introduce new products and features that meet the continually changing requirements of our customers. All statements contained in this press release that are not historical facts are forward-looking statements. They are not guarantees of future performance or events. They are based upon current expectations, estimates, beliefs, and assumptions about the future, which may prove incorrect, and upon our goals and objectives, which may change. Often such statements can be identified by the use of the words such as "will," "intends," "expects," "plans," "believes," "anticipates" and "estimates." Forward looking statements in this release include our expected fourth quarter revenues and gross margin.

These forward-looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. They are not guarantees of future performance or events but rather involve a number of risks and uncertainties including, but not limited to, whether our shipments meet revenue recognition requirements, distributor product resale and OEM hub inventory draw-down are as we anticipate for the quarter, our not discovering any unexpected manufacturing expenses, reserve account changes, or inventory write-downs as we close the books for the quarter, and our auditors confirming our accounting treatment of various matters, as well as other risk factors detailed in our Form 8-K, 10-K, and 10-Q filings with the Securities and Exchange Commission. Due to these and other risks, our future actual results could differ materially from those discussed above. We undertake no obligation to publicly release updates or revisions to these statements that speak only as of this date.

About Supertex

Supertex, Inc. is a publicly held mixed signal semiconductor manufacturer, focused in high voltage products for use in the medical ultrasound imaging, LCD TV backlighting, LED general lighting, telecommunications, printer, flat panel display, industrial and consumer product industries. Supertex product, corporate and financial information is readily available at our website: http://www.supertex.com.

For further information, contact Investor Relations at Supertex, Inc., 1235 Bordeaux Drive, Sunnyvale, California 94089, 408-222-8888 or visit our website at http://www.supertex.com.