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                                                                    Exhibit 31.2

                          SECTION 302 CERTIFICATION OF
                          PRINCIPAL ACCOUNTING OFFICER

   I, Andrew Perz, certify that:

1.    I have reviewed this Quarterly Report on Form 10-Q of AMERICAN
      TECHNICAL CERAMICS CORP.;

2.    Based on my knowledge, this report does not contain any untrue
      statement of a material fact or omit to state a material fact
      necessary to make the statements made, in light of the
      circumstances under which such statements were made, not
      misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other
      financial information included in this report, fairly present in
      all material respects the financial condition, results of
      operations and cash flows of the Company as of, and for, the
      periods presented in this report;

4.    The Company's other certifying officer(s) and I are responsible
      for establishing and maintaining disclosure controls and
      procedures (as defined in Exchange Act Rules 13a-15(e) and
      15d-15(e)) for the Company and have:

      a)  designed such disclosure controls and procedures, or caused such
          disclosure controls and procedures to be designed under our
          supervision, to ensure that material information relating to the
          Company, including its consolidated subsidiaries, is made known to us
          by others within those entities, particularly during the period in
          which this report is being prepared;

      b)  evaluated the effectiveness of the Company's disclosure controls and
          procedures and presented in this report our conclusions about the
          effectiveness of the disclosure controls and procedures, as of the end
          of the period covered by this report based on such evaluation; and

      c)  disclosed in this report any change in the Company's internal control
          over financial reporting that occurred during the Company's most
          recent fiscal quarter that has materially affected, or is reasonably
          likely to materially affect, the Company's internal control over
          financial reporting; and

5.    The Company's other certifying officer and I have disclosed, based on our
      most recent evaluation of internal control over financial reporting, to
      the Company's auditors and the audit committee of the Company's board of
      directors:

      a)  all significant deficiencies and material weaknesses in the design or
          operation of internal control over financial reporting which are
          reasonably likely to adversely affect the Company's ability to record,
          process, summarize and report financial information; and

      b)  any fraud, whether or not material, that involves management or other
          employees who have a significant role in the Company's internal
          control over financial reporting.

          Date:  November 12, 2004
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                 /S/ ANDREW R. PERZ
              ----------------------------
               Vice President, Controller
              Principal Accounting Officer

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