<ARTICLE> 5
<LEGEND>
Microsemi Corporation and Subsidiaries Unaudited Financial Data Schedule for the
Nine Months Ended June 29, 1997 (in thousands, except earnings per share)
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          SEP-28-1997
<PERIOD-START>                             SEP-30-1996
<PERIOD-END>                               JUN-29-1997
<CASH>                                           4,791
<SECURITIES>                                         0
<RECEIVABLES>                                   27,898
<ALLOWANCES>                                     2,553
<INVENTORY>                                     47,328
<CURRENT-ASSETS>                                86,286
<PP&E>                                          64,957
<DEPRECIATION>                                  34,364
<TOTAL-ASSETS>                                 123,227
<CURRENT-LIABILITIES>                           35,086
<BONDS>                                         46,164
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         1,743
<OTHER-SE>                                      36,347
<TOTAL-LIABILITY-AND-EQUITY>                   123,227
<SALES>                                        119,064
<TOTAL-REVENUES>                               119,064
<CGS>                                           86,593
<TOTAL-COSTS>                                   86,593
<OTHER-EXPENSES>                                   257
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               2,826
<INCOME-PRETAX>                                 12,470
<INCOME-TAX>                                     5,159
<INCOME-CONTINUING>                              7,311
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     7,311
<EPS-PRIMARY>                                      .83
<EPS-DILUTED>                                      .69