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) - February 8, 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 7.01     REGULATION FD DISCLOSURE

              (The information under this item 7.01 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 February 8, 2006

              On Wednesday, February 8, 2006, the Registrant issued a press
          release disclosing financial results for the quarter and year ended
          December 31, 2005. The press release is made part of this Form and is
          attached as Exhibit 99.1.

              The press release, dated February 8, 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:  February 8, 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 February 8, 2006