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) -- May 2, 2007


                                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.)

                  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:

[___]    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))






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 May 2, 2007, Littelfuse, Inc. issued a press release announcing the results
of its operations for the first quarter ended March 31, 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 May 2, 2007



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                                    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:  May 2, 2007                          By: /s/ Philip G. Franklin
                                                ----------------------
                                            Philip G. Franklin
                                            Vice President, Operations
                                            Support and Chief Financial Officer



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                                  EXHIBIT INDEX


99.1     Press release, dated May 2, 2007