<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM (A) THE
CONDENSED CONSOLIDATED FINANCIAL STATEMENTS FOR THE FISCAL QUARTER ENDED
SEPTEMBER 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH (B)
QUARTERLY REPORT ON FORM 10-Q FOR THE FISCAL QUARTER ENDED SEPTEMBER 30, 1997
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          MAR-31-1998
<PERIOD-START>                             APR-01-1997
<PERIOD-END>                               SEP-30-1997
<CASH>                                          20,098
<SECURITIES>                                    13,206
<RECEIVABLES>                                   61,144
<ALLOWANCES>                                     3,894
<INVENTORY>                                     48,014
<CURRENT-ASSETS>                               143,426
<PP&E>                                          55,877
<DEPRECIATION>                                  34,637
<TOTAL-ASSETS>                                 180,121
<CURRENT-LIABILITIES>                           43,476
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           190
<OTHER-SE>                                     136,276
<TOTAL-LIABILITY-AND-EQUITY>                   180,121
<SALES>                                        123,839
<TOTAL-REVENUES>                               123,839
<CGS>                                           80,623
<TOTAL-COSTS>                                   80,623
<OTHER-EXPENSES>                                28,861
<LOSS-PROVISION>                                   592
<INTEREST-EXPENSE>                                 222
<INCOME-PRETAX>                                 14,670
<INCOME-TAX>                                     1,467
<INCOME-CONTINUING>                             13,203
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    13,203
<EPS-PRIMARY>                                     0.67
<EPS-DILUTED>                                     0.66