<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          MAR-31-1998
<PERIOD-START>                             OCT-01-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                           2,031
<SECURITIES>                                     8,250
<RECEIVABLES>                                   15,713
<ALLOWANCES>                                       420
<INVENTORY>                                     11,687
<CURRENT-ASSETS>                                40,148
<PP&E>                                          24,423
<DEPRECIATION>                                  17,040
<TOTAL-ASSETS>                                  47,622
<CURRENT-LIABILITIES>                           10,976
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        24,387
<OTHER-SE>                                      11,537
<TOTAL-LIABILITY-AND-EQUITY>                    47,622
<SALES>                                         14,412
<TOTAL-REVENUES>                                14,412
<CGS>                                            8,635
<TOTAL-COSTS>                                    8,635
<OTHER-EXPENSES>                                 3,987
<LOSS-PROVISION>                                   420
<INTEREST-EXPENSE>                                  25
<INCOME-PRETAX>                                  1,887
<INCOME-TAX>                                       717
<INCOME-CONTINUING>                              1,170
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     1,170
<EPS-PRIMARY>                                     0.16
<EPS-DILUTED>                                     0.16