EXHIBIT 99.1



                                     FORM OF


                      NON-QUALIFIED STOCK OPTION AGREEMENT


                                    UNDER THE

                STOCK PLAN FOR NEW DIRECTORS OF LITTELFUSE, INC.


     THIS NON-QUALIFIED STOCK OPTION AGREEMENT is entered into as of July 7,
2006, between _______________________ (the "Optionee") and LITTELFUSE, INC., a
Delaware corporation (the "Corporation"), with reference to the
following facts:

     A. Pursuant to provisions of the Stock Plan for New Directors of
Littelfuse, Inc. (the "Plan"), the Compensation Committee of the Board of
Directors of the Corporation may grant to "Eligible Directors," as such term is
defined under the Plan, options to purchase certain shares of the common stock,
$.01 par value, of the Corporation (the "Common Stock").

     B. The Optionee is an "Eligible Director," as such term is defined under
the Plan, and the Compensation Committee deems it to be in the best interests of
the Corporation to grant the Optionee options under the Plan.

     NOW, THEREFORE, IN CONSIDERATION of the foregoing facts, the Corporation
hereby grants the following options:

          1. Grant of Option. The Corporation hereby grants to the Optionee an
     irrevocable option to purchase up to 1,500 shares of Common Stock of the
     Corporation at the price of $33.19 per share. The number and kind of shares
     subject to this option and the purchase price per share are subject to
     adjustment as provided in the Plan. This option shall expire on the day
     before the seventh (7th) anniversary of the date hereof unless earlier
     terminated in accordance with the provisions hereof.

          2. Exercise of Option. Subject to the terms of the Plan, this option
     may be exercised as follows: with respect to twenty-five percent (25%) of
     the Common Stock covered hereby during the six (6) year period commencing
     one (1) year following the date of grant; with respect to an additional
     twenty-five percent (25%) of the Common Stock covered hereby during the
     five (5) year period commencing two (2) years following the date of grant;
     with respect to an additional twenty-five percent (25%) of the Common Stock
     covered hereby during the four (4) year period commencing three (3) years
     following the date of grant; and with respect to the remaining twenty-five
     percent (25%) of the Common Stock covered hereby during the three (3) year
     period commencing four (4) years following the date of grant. This option
     shall be exercised by delivery of written notice to the Corporation stating
     the number of shares with respect to which the option is being exercised,
     together with full payment of the purchase price therefor. Payment may be
     made in cash or in such other form or combination of forms permitted by the
     Plan as shall be acceptable to the Committee.







          3. Reserved Shares. The Corporation has duly reserved for issuance a
     number of authorized but unissued shares adequate to fulfill its
     obligations under this Agreement. During the term of this Agreement the
     Corporation shall take such action as may be necessary to maintain at all
     times an adequate number of shares reserved for issuance or treasury shares
     to fulfill its obligations hereunder.

          4. Termination of Service as Director. In the event that the Optionee
     ceases to serve as a director of the Corporation for any reason other than
     as set forth in paragraph 10 of the Plan, this option may, subject to the
     provisions of the Plan, be exercised (but only to the extent that the
     Optionee was entitled to do so at the time of such cessation of service as
     a director) at any time within three (3) months after such cessation of
     service as a director, but in no case later than the date on which this
     option was originally scheduled to expire. Any portion of this option which
     was not exercisable by the Optionee at the time of any such cessation of
     service shall be cancelled and forfeited and the Optionee shall not have
     any further rights whatsoever with respect thereto.

          5. Assignment or Transfer. This option may not be assigned or
     transferred except by will, by the laws of descent and distribution, and by
     gift pursuant to the provisions of Section 8c of the Plan, and shall be
     exercisable only by the Optionee during the Optionee's lifetime.

          6. Plan and Committee. The construction of the terms of this Agreement
     shall be controlled by the Plan, a copy of which is attached hereto as
     Exhibit A and hereby made a part hereof as though set forth herein
     verbatim, and the rights of the Optionee are subject to modification and
     termination in certain events as provided in the Plan. All words and
     phrases not otherwise defined herein shall have the meanings provided in
     the Plan. The Committee's interpretations of and determinations under any
     of the provisions of the Plan or this Agreement shall be conclusive.

          7. Compliance with Law. This option shall not be exercised and no
     shares shall be issued in respect hereof, unless in compliance with
     applicable federal and state tax and securities laws.

               7.1. Certificate Legends. The certificates for shares purchased
          pursuant to this option shall bear any legends deemed necessary by the
          Committee.

               7.2. Representations of the Optionee. As a condition to the
          exercise of this option, the Optionee will deliver to the Corporation
          such signed representations as may be necessary, in the opinion of
          counsel satisfactory to the Corporation, for compliance with
          applicable federal and state securities laws.

               7.3. Resale. The Optionee's ability to transfer shares purchased
          pursuant to this option or securities acquired in lieu thereof or in
          exchange



          therefor may be restricted under federal or state securities
          laws. The Optionee shall not resell or offer for resale such shares or
          securities unless they have been registered or qualified for resale
          under all applicable federal and state securities laws or an exemption
          from such registration or qualification is available in the opinion of
          counsel satisfactory to the Corporation.

          8. Notice. Every notice or other communication relating to this
     Agreement shall be in writing and shall be mailed or delivered to the party
     for whom it is intended at such address as may from time to time be
     designated by such party in a notice mailed or delivered to the other party
     as herein provided; provided, however, that unless and until some other
     address be so designated, all notices or communications by the Optionee to
     the Corporation shall be mailed or delivered to the Corporation to the
     attention of its Secretary at 800 East Northwest Highway, Des Plaines,
     Illinois 60016, and all notices or communications by the Corporation to the
     Optionee may be given to the Optionee personally or may be mailed to the
     Optionee at the most recent address which the Optionee has provided in
     writing to the Corporation.

          9. Tax Treatment. This option is a non-qualified option and shall not
     be treated as an incentive stock option pursuant to Section 422 of the
     Internal Revenue Code of 1986, as amended. The Optionee acknowledges that
     the tax treatment of this option, shares subject to this option or any
     events or transactions with respect thereto may be dependent upon various
     factors or events which are not determined by the Plan or this Agreement.
     The Corporation makes no representations with respect to and hereby
     disclaims all responsibility as to such tax treatment.

          10. Withholding Taxes. The Corporation shall have the right to require
     the Optionee to remit to the Corporation an amount sufficient to satisfy
     any federal, state or local withholding tax requirement prior to the
     delivery of any shares of Common Stock acquired by the exercise of the
     option granted hereunder. In each case of the exercise of the option, the
     Corporation will notify the Optionee of the amount of the withholding tax
     which must be paid under federal and, where applicable, state and local
     law. Upon receipt of such notice, the Optionee shall promptly remit to the
     Corporation the amount specified in such notice. No amounts of income
     received by the Optionee pursuant to this Agreement shall be considered
     compensation for purposes of any pension or retirement plan, insurance plan
     or any other employee benefit plan of the Corporation or any Subsidiary.




     IN WITNESS WHEREOF, the Corporation and the Optionee have executed this
Non-Qualified Stock Option Agreement effective as of the date first set forth
above.

LITTELFUSE, INC.                            Optionee:


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