<ARTICLE> 5 <MULTIPLIER> 1000 <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> MAR-31-2000 <PERIOD-END> MAR-31-2000 <CASH> 22,584 <SECURITIES> 11,592 <RECEIVABLES> 16,109 <ALLOWANCES> 1,366 <INVENTORY> 15,083 <CURRENT-ASSETS> 67,304 <PP&E> 38,029 <DEPRECIATION> 23,139 <TOTAL-ASSETS> 86,623 <CURRENT-LIABILITIES> 14,354 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 23,167 <OTHER-SE> 49,102 <TOTAL-LIABILITY-AND-EQUITY> 86,623 <SALES> 70,838 <TOTAL-REVENUES> 70,838 <CGS> 44,976 <TOTAL-COSTS> 44,976 <OTHER-EXPENSES> 15,448 <LOSS-PROVISION> 175 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 12,649 <INCOME-TAX> 4,174 <INCOME-CONTINUING> 8,475 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 8,475 <EPS-BASIC> 0.70 <EPS-DILUTED> 0.68