EXHIBIT 10.1 BY FAX: 414-765-2625 December 23, 2002 Mr. Anthony Maggiore Director, Capital Markets Bank One, NA 111 East Wisconsin Ave., 4th Floor Milwaukee WI 53201 Dear Mr. Maggiore: In accordance with Section 2.5 (A) of the $250,000,000 Credit...

                                                                    EXHIBIT 10.1











BY FAX:  000-000-0000

December 23, 2002

Xx. Xxxxxxx Xxxxxxxx
Director, Capital Markets
Bank One, NA
000 Xxxx Xxxxxxxxx Xxx., 0xx Xxxxx
Xxxxxxxxx XX 00000

Dear Xx. Xxxxxxxx:

In accordance with Section 2.5 (A) of the $250,000,000 Credit Agreement dated as
of October 25, 2000 among Plexus Corp. and the parties thereto as lenders, Bank
One, NA, as administrative agent, ABN Amro Bank N.V. as syndication agent and
Firstar Bank, N.A. as documentation agent (the "Credit Agreement"), this letter
is to request permanent reduction in whole of the Aggregate Commitment (from its
present level of to $150,000,000 to $0 [zero dollars]), effective immediately.

Thank you very much.

Yours truly,




Xxxxxx X.X. Xxxxxx
Corporate Treasurer &
Chief Treasury Officer