<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> MAR-31-1997 <PERIOD-END> MAR-31-1997 <CASH> 19,166 <SECURITIES> 0 <RECEIVABLES> 9,862 <ALLOWANCES> 525 <INVENTORY> 9,249 <CURRENT-ASSETS> 44,655 <PP&E> 25,473 <DEPRECIATION> 13,720 <TOTAL-ASSETS> 56,408 <CURRENT-LIABILITIES> 7,921 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 20,302 <OTHER-SE> 28,185 <TOTAL-LIABILITY-AND-EQUITY> 56,408 <SALES> 48,935 <TOTAL-REVENUES> 48,935 <CGS> 26,073 <TOTAL-COSTS> 37,605 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 34 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 12,823 <INCOME-TAX> 4,103 <INCOME-CONTINUING> 8,720 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 8,720 <EPS-PRIMARY> .70 <EPS-DILUTED> .70