8-K

United States
Securities and Exchange Commission

Washington, D.C. 20579

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) — June 11, 2010

Littelfuse, Inc.

(Exact name of registrant as specified in its charter)

Delaware	0-20388	36-3795742
(State of other jurisdiction	(Commission	(IRS Employer
of incorporation)	File Number)	Identification No.)

8755 W. Higgins Road, Suite 500, Chicago, IL 60631
(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (773) 628-1000

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:

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

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

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

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

Item 8.01 Other Events

The information in this Form 8-K is not deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934 and is not incorporated by reference into any Securities Act registration statements.

On June 11, 2010, Littelfuse, Inc. (the “Company”) issued a press release announcing revised financial guidance for the three months ended July 3, 2010. A copy of the press release is attached as Exhibit 99.1 to this Form 8-K and incorporated by reference to this Item 8.01 as if fully set forth herein.

The press release attached to this Form 8-K includes forward looking statements that are intended to be covered by the safe-harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward looking statements include but are not limited to comments with respect to the objectives and strategies, financial condition, results of operations and business of the Company.

These forward looking statements involve numerous assumptions, inherent risks and uncertainties, both general and specific, and the risk that predictions and other forward looking statements will not be achieved. The Company cautions you not to place undue reliance on these forward looking statements as a number of important factors could cause actual future results to differ materially from the plans, objectives, expectations, estimates and intentions expressed in such forward looking statements.

A copy of the press release is also posted on the Company’s website.

Item 9.01 Financial Statements and Exhibits

d) Exhibits.

     The following exhibit is furnished with this Form 8-K:

Exhibit No.	Description
99.1	Press Release, dated June 11, 2010

-2-

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.

	Littelfuse, Inc.
Date: June 11, 2010	By:	/s/ Philip G. Franklin
		Philip G. Franklin
		Vice President, Operations Support and Chief Financial Officer

-3-

Exhibit Index

Exhibit No.	Description
99.1	Press release, dated June 11, 2010

EX-99.1

Exhibit 99.1

NEWS RELEASE
CONTACT: Philip G. Franklin
Vice President, Operations Support & CFO (773) 628-0810

LITTELFUSE RAISES GUIDANCE FOR SECOND QUARTER

     CHICAGO, June 11, 2010 — Littelfuse, Inc. (NASDAQ:LFUS) today announced revised guidance for the second quarter of 2010 as follows:

• Sales for the second quarter of 2010 are now expected to be in the range of $155 to $160 million, which represents sequential growth of 7% to 11%. Previous guidance called for sales in the range of $148 to $153 million.

• Earnings for the second quarter of 2010 are expected to be in the range of $0.78 to $0.88 per diluted share. Previous guidance called for earnings in the range of $0.69 to $0.77 per diluted share.

     “Electronics demand continues to exceed our forecast in all end markets and all geographies,” said Gordon Hunter, Chief Executive Officer. “Startco is performing at the high end of expectations and the electrical fuse business is steadily improving.”

     “Overall, our operations teams have done a very good job ramping up production to meet increasing customer demand,” said Phil Franklin, Chief Financial Officer. “Recently, however, we have had a supply interruption at our semiconductor factory in Taiwan. Equipment failure caused a fire in a limited area that was quickly brought under control. Production has resumed, but we will be operating this facility below full capacity for a few months. This is expected to constrain sales by $2 to $3 million in the third quarter.”

     “Orders and backlog remain robust in all geographies, which leads us to believe we will see typical seasonal strength in the third quarter,” said Hunter. “The final manufacturing transfers are on track and are expected to deliver additional savings beginning in the third quarter.”

     No conference call will be held in conjunction with this revised guidance. Littelfuse is scheduled to release financial results for the second quarter on August 5, 2010.

-more-

Page 2

About Littelfuse

     Littelfuse is the worldwide leader in circuit protection, offering the industry’s broadest and deepest portfolio of circuit protection products and solutions. Backed by industry-leading technical support, design and manufacturing expertise Littelfuse products are vital components in virtually every product that uses electrical energy, including portable and consumer electronics, automobiles, industrial equipment and telecom/datacom circuits. In addition to its Chicago, Illinois, world headquarters, Littelfuse has over 20 sales, distribution, manufacturing and engineering facilities in the Americas, Europe and Asia. Technologies offered by Littelfuse include Fuses; Gas Discharge Tubes (GDTs); Positive Temperature Coefficient Devices (PTCs); Protection Relays; PulseGuard® ESD Suppressors; SIDACtor® Devices; Silicon Protection Arrays™(SPAs); Switching Thyristors; TVS Diodes and Varistors.

     For more information, please visit the Littelfuse website at www.littelfuse.com.

“Safe Harbor” Statement under the Private Securities Litigation Reform Act of 1995. The statements in this press release that are not historical facts are intended to constitute “forward-looking statements” entitled to the safe-harbor provisions of the PSLRA. These statements may involve risks and uncertainties, including, but not limited to, risks relating to product demand and market acceptance, economic conditions, the impact of competitive products and pricing, product quality problems or product recalls, capacity and supply difficulties or constraints, coal mining exposures reserves, failure of an indemnification for environmental liability, exchange rate fluctuations, commodity price fluctuations, the effect of the company’s accounting policies, labor disputes, restructuring costs in excess of expectations, pension plan asset returns less than assumed, integration of acquisitions and other risks which may be detailed in the company’s Securities and Exchange Commission filings. Should one or more of these risks or uncertainties materialize or should the underlying assumptions prove incorrect, actual results and outcomes may differ materially from those indicated or implied in the forward-looking statements. This report should be read in conjunction with information provided in the financial statements appearing in the company’s Annual Report on Form 10-K for the year ended January 2, 2010. For a further discussion of the risk factors of the company, please see Item 1A. “Risk Factors” to the company’s Annual Report on Form 10-K for the year ended January 2, 2010.

# # #