<ARTICLE>                     5
<LEGEND>
     THIS SCHEDULE  CONTAINS SUMMARY FINANCIAL  INFORMATION  EXTRACTED FROM FORM
     10-K FOR THE PERIOD  ENDED MARCH 31, 2000 AND IS  QUALIFIED IN ITS ENTIRETY
     BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                                   1,000

                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                              MAR-31-2000
<PERIOD-START>                                 APR-01-1999
<PERIOD-END>                                   MAR-31-2000
<CASH>                                              11,553
<SECURITIES>                                        36,027
<RECEIVABLES>                                       24,237
<ALLOWANCES>                                           420
<INVENTORY>                                         34,542
<CURRENT-ASSETS>                                   111,607
<PP&E>                                              66,351
<DEPRECIATION>                                      46,683
<TOTAL-ASSETS>                                     131,275
<CURRENT-LIABILITIES>                               30,939
<BONDS>                                                  0
<PREFERRED-MANDATORY>                                    0
<PREFERRED>                                              0
<COMMON>                                                12
<OTHER-SE>                                          98,973
<TOTAL-LIABILITY-AND-EQUITY>                       131,275
<SALES>                                            163,567
<TOTAL-REVENUES>                                   163,567
<CGS>                                              129,998
<TOTAL-COSTS>                                      129,998
<OTHER-EXPENSES>                                    22,488<F1>
<LOSS-PROVISION>                                         0
<INTEREST-EXPENSE>                                     473
<INCOME-PRETAX>                                    (5,793)
<INCOME-TAX>                                            30
<INCOME-CONTINUING>                                (5,823)
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                       (5,823)
<EPS-BASIC>                                         (0.56)
<EPS-DILUTED>                                       (0.56)<F2><FN>

<F1> Item consists of research and development.
<F2> Item consists of basic earnings per share.
</FN>