EXHIBIT 23.1








            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM










The Board of Directors
American Technical Ceramics Corp.:


We consent to the incorporation by reference in the Registration Statements on
Form S-8 (No. 333-50913 and No. 333-76582) of American Technical Ceramics Corp.
of our report, dated September 27, 2005, relating to the consolidated balance
sheets of American Technical Ceramics Corp. and subsidiaries as of June 30, 2005
and 2004, and the related consolidated statements of operations, stockholders'
equity and comprehensive income (loss) and cash flows, for each of the years in
the three-year period ended June 30, 2005, which report appears in the 2005
Annual Report on Form 10-K of American Technical Ceramics Corp.


                                    /s/ KPMG, LLP




Melville, New York
October 4, 2005