Table of Contents

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) — October 31, 2007
Littelfuse, Inc.
(Exact name of registrant as specified in its charter)
Delaware   0-20388   36-3795742
(State of other jurisdiction
of incorporation)
File Number)
  (IRS Employer
Identification No.)
800 E. Northwest Hwy., Des Plaines, IL 60016
(Address of principal executive offices) (Zip Code)
Registrant’s telephone number, including area code: (847) 824-1188
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 7.01 Regulation FD Disclosure
Item 9.01 Financial Statements and Exhibits
Exhibit Index
Press Release

Table of Contents

Item 7.01 Regulation FD Disclosure
The following information, including the Exhibit to this Form 8-K, is being furnished pursuant to Item 2.02 — Results of Operations and Financial Condition of Form 8-K and is being presented under Item 7.01 of Form 8-K. This information 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 October 31, 2007, Littelfuse, Inc. issued a press release announcing the results of its operations for the third quarter ended September 29, 2007. A copy of the press release is attached as Exhibit 99.1 to this Form 8-K and incorporated by reference to this Item 7.01 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 Registrant.
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 Registrant 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 this press release is also posted on the Registrant’s website.
Item 9.01 Financial Statements and Exhibits
d) Exhibits.
  99.1   Press Release, dated October 31, 2007


Table of Contents

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: October 31, 2007  By:   /s/ Philip G. Franklin    
    Philip G. Franklin  
    Vice President, Operations Support and Chief Financial Officer   


Table of Contents

Exhibit Index
99.1   Press release, dated October 31, 2007