Exhibit 99.1

                          SECTION 302 CERTIFICATION OF
                             CHIEF EXECUTIVE OFFICER

I, Victor Insetta, certify that:

1.   I  have  reviewed  this quarterly report on Form 10-Q of American Technical
     Ceramics  Corp.;

2.   Based  on  my  knowledge, this quarterly 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  quarterly  report;  and

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

4.   The  Registrant's  other  certifying  officer  and  I  are  responsible for
     establishing and maintaining disclosure controls and procedures (as defined
     in  Exchange  Act  Rules 13a-14 and 15d-14) for the Registrant and we have:

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

     b)   evaluated the effectiveness of the Registrant's disclosure controls
          and procedures as of a date within 90 days prior to the filing date of
          this quarterly report (the "Evaluation Date"); and

     c)   presented in this quarterly report our conclusions about the
          effectiveness of the disclosure controls and procedures based on our
          evaluation as of the Evaluation Date;

5.   The Registrant's other certifying officer and I have disclosed, based on
     our most recent evaluation, to the Registrant's auditors and the audit
     committee of the Registrant's board of directors (or persons performing the
     equivalent function):

     a)   all significant deficiencies in the design or operation of internal
          controls which could adversely affect the Registrant's ability to
          record, process, summarize and report financial data and have
          identified for the Registrant's auditors any material weakness in
          internal controls; and

     b)   any fraud, whether or not material, that involves management or other
          employees who have a significant role in the Registrant's internal
          controls; and

6.   The Registrant's other certifying officer and I have indicated in this
     quarterly report whether or not there were significant changes in internal
     controls or in other factors that could significantly affect internal
     controls subsequent to the date of our most recent evaluation, including
     any corrective actions with regard to significant deficiencies and material
     weaknesses.

          Dated:  May 13, 2003                    /s/ VICTOR INSETTA
                                                  ------------------
                                         President and Chief Executive Officer
                                            (Principal  Executive  Officer)


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