On October 9, 2009, Littelfuse, Inc. (the "Company") amended and restated the Littelfuse, Inc. 401(k) Savings Plan (the "401(k) Plan") to (a) change its name to the Littelfuse, Inc. 401(k) Retirement and Savings Plan and (b) provide
(i) fully vested matching contributions equal to 100% of the first 4% of a participant's pay contributed to the 401(k) Plan and (ii) fully vested non-elective contributions equal to 5% of a participant's pay to those participants who participated in the Littelfuse, Inc. Retirement Plan and have a combined age and years of service of at least 60 as of January 1, 2010. The amendment to the 401(k) Plan is attached hereto as Exhibit 10.1. On the same date, the Company also amended the Littelfuse, Inc. Supplemental Executive Retirement Plan to freeze contributions and to set the annual interest rate credited to accounts until distributed at the 5-year Treasury constant maturity rate. The amendment to the terms of the Supplemental Executive Retirement Plan is attached hereto as Exhibit 10.2. On October 9, 2009, the Company adopted the Littelfuse, Inc. Supplemental Retirement and Savings Plan, effective January 1, 2010 (the "Supplemental Plan"), for certain management employees, including the named executive officers. The Supplemental Plan is a non-qualified retirement plan that allows participants to plan for retirement by contributing up to 90% of their annual compensation. The Supplemental Plan provides (i) fully vested matching contributions in an amount equal to up to 4% of a participant's annual compensation in excess of the IRS compensation limit applicable to the Company's 401(k) plan and (ii) fully vested non-elective contributions equal to 5% of a participant's annual compensation in excess of the IRS compensation limit applicable to the Company's 401(k) plan to those participants who participated in the Littelfuse, Inc. Retirement Plan and have a combined age and years of service of at least 60 as of January 1, 2010. A copy of the Supplemental Plan is attached hereto as Exhibit 10.3 Item 9.01 Financial Statements and Exhibits
(d) Exhibits

Exhibit
Number    Description
10.1      Amended and Restated Littelfuse, Inc. 401(k) Retirement and Savings Plan.

10.2      Amendment to Littelfuse, Inc. Supplemental Executive Retirement Plan

10.3      Littelfuse, Inc. Littelfuse, Inc. Supplemental Retirement and Savings Plan