EXHIBIT 99.4

                                     FORM OF
                      NON-QUALIFIED STOCK OPTION AGREEMENT
                                    UNDER THE
               LITTELFUSE, INC. EQUITY INCENTIVE COMPENSATION PLAN

     THIS NON-QUALIFIED STOCK OPTION AGREEMENT is entered into as of _______,
20____, between ______________________ (the "Optionee") and LITTELFUSE, INC., a
Delaware corporation (the "Corporation"), with reference to the following facts:

     A. Pursuant to the Littelfuse, Inc. Equity Incentive Compensation Plan (the
"Plan"), the Corporation is authorized to grant options for shares of its Common
Stock, $.01 par value (the "Common Stock"), to officers and employees of the
Corporation or any Subsidiary as a reward for past performance or as an
incentive to future performance.

     B. The Corporation desires to grant an option to the Optionee.

     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 __________ shares of Common Stock of
     the Corporation at the price of $_________ 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 and this
     Agreement, 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 Employment. In the event that the Optionee ceases to
     be an employee of the Corporation and its subsidiaries for any reason other
     than as set forth in Section 11.4 of the Plan, this option may, subject to
     the provisions of the Plan and Section 11 of this Agreement, be exercised
     (but only to the extent that the Optionee was entitled to do so at the time
     of the termination of the Optionee's employment) at any time within three
     (3) months after such termination, 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
     termination of employment shall be cancelled and forfeited and the Optionee
     shall not have any further rights whatsoever with respect thereto.
     Notwithstanding the foregoing:

          (a)  If the Optionee's employment is terminated by reason of the
               Optionee's Disability, or following a Change in Control (as both
               such terms are defined in the Plan), the option shall vest in
               full, and may be exercised at any time during the period
               described above, as provided in Section 11.2(a) of the Plan.

          (b)  If the Optionee's employment is terminated by reason of the
               Optionee's death, the option shall vest in full, and may be
               exercised at any time during the period described above, except
               that twelve (12) months shall be substituted for three (3) months
               from the date of termination, as provided in Section 11.2(a) of
               the Plan.

          (c)  If the Optionee's employment is terminated by reason of the
               Eligible Retirement, as defined in the Plan, the option shall not
               vest in full at the time of termination, but shall continue to
               vest on the same dates, and be exercisable during the same
               periods, as if the Optionee were still employed, as provided in
               Section 11.2(b) of the Plan.

          5. Assignment or Transfer. This option may not be assigned or
     transferred except by will or by the laws of descent and distribution or
     pursuant to Section 12.1 of the Plan.

          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.


                                       -2-



               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 "Code"). The option is
     intended as a stock right that does not provide for deferral of
     compensation and is not subject to Section 409A of the Code, and shall not
     be interpreted to permit any deferral of compensation that would cause it
     to be subject to Section 409A. 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


                                       -3-



     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 of its Subsidiaries.

          11. Non-competition Forfeiture Provisions. The Optionee acknowledges
     that a primary objective of the Corporation in deciding to grant the option
     to the Optionee under this Agreement is to provide the Optionee with an
     incentive to acquire shares of Common Stock and remain an employee of the
     Corporation and that this objective will not have been accomplished if the
     Optionee exercises the option, in whole or in part, and shortly thereafter
     terminates his or her employment with the Corporation and becomes an
     employee of a competitor of the Corporation or its affiliates. Therefore,
     notwithstanding anything else to the contrary contained in the Plan or this
     Agreement, in the event that the Optionee shall accept employment with, or
     become employed by, a Competitor (as such term is hereinafter defined) as
     an officer, employee, consultant, agent, representative or otherwise, or in
     the event that any of the Forfeiture Events described in Section 11.4 of
     the Plan occur during the Optionee's employment or within twelve (12)
     months thereafter, the Optionee agrees that: (i) all unexercised options to
     acquire Common Stock then held by the Optionee which have been granted by
     the Corporation to the Optionee pursuant to this Agreement shall be deemed
     to be cancelled and forfeited and the Optionee shall not have any further
     rights whatsoever with respect thereto; and (ii) the Optionee shall
     immediately pay to the Corporation an amount equal to the product of (x)
     the aggregate number of shares of Common Stock respecting which the
     Optionee exercised options to acquire shares of Common Stock granted
     pursuant to this Agreement at any time during the 180 days preceding the
     earlier of the date the Optionee accepted or commenced employment with a
     Competitor and (y) the aggregate differences between the exercise prices of
     any such options and the respective fair market values (as such term is
     defined in Section 2.14 of the Plan) of the Common Stock on the respective
     dates of exercise of such options (the "Forfeited Options Gain"). As used
     herein, the term "Competitor" shall mean any person or entity, or any
     affiliate thereof, which manufactures, distributes or sells circuit
     protection products in competition with the Corporation or any of its
     Subsidiaries. In the event that the Optionee shall fail to immediately pay
     to the Corporation the Forfeited Options Gain, the Optionee shall be liable
     to the Corporation for all costs, expenses and attorneys' fees incurred by
     the Corporation in connection with collecting the Forfeited Options Gain
     from the Optionee, plus interest at a per annum rate equal to the lower of
     12% or the highest rate permitted by applicable law. The Optionee agrees
     that the Corporation and its Subsidiaries compete worldwide in the sale of
     circuit protection products and that the forfeiture provisions of this
     Section 11, and Section 11.3 of the Plan, are reasonable as they relate to
     the objectives of the Corporation in deciding to grant the option to the
     Optionee under this Agreement. In the event that any court shall finally
     hold that any provision of this Agreement constitutes an unreasonable or
     unenforceable restriction against the Optionee, the Optionee agrees that
     the provisions hereof shall not be rendered void but shall apply to such
     extent as such court may judicially determine or indicate constitutes a
     reasonable and enforceable restriction under the circumstances involved.
     The Corporation and the Optionee each request that any such court which
     holds that any of the provisions of this Agreement constitutes an
     unreasonable or unenforceable restriction against the Optionee


                                       -4-



     make a determination of what would constitute a reasonable and enforceable
     restriction under the circumstances involved and to reform this Agreement
     accordingly.

          12. No Right to Continued Employment. Nothing in the Plan or in this
     Agreement shall confer upon the Optionee any right to continue in the
     employ or service of the Corporation or any of its subsidiaries or
     interfere in any way with the right of the Corporation or its subsidiaries
     to terminate such employment or service at any time.

          13. Governing Law. Agreement shall be governed by and construed in
     accordance with the laws of the State of Delaware, U.S.A., excluding any
     conflicts or choice of law rule or principle that might otherwise refer
     construction or interpretation of this Agreement to the statutory or common
     law of another jurisdiction.

     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:


By
   ---------------------------------   -----------------------------------------
Its
    --------------------------------


                                       -5-