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 9, 2006


                                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 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION

                  (The information under this item 2.02 is being furnished
                  pursuant to Item 12 of Form 8-K)

ITEM 9.01 FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS

                  99.1 Press Release, dated May 9, 2006

                  On Tuesday, May 9, 2006, the Registrant issued a press release
         disclosing financial results for the quarter ended April 1, 2006. The
         press release is made part of this Form and is attached as Exhibit
         99.1.

                  The press release, dated May 9, 2006, made a part of the Form
         include 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.



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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 9, 2006                       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 9, 2006