
<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 5
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             APR-01-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                           1,448
<SECURITIES>                                     3,901
<RECEIVABLES>                                    7,570
<ALLOWANCES>                                        20
<INVENTORY>                                      6,549
<CURRENT-ASSETS>                                22,296
<PP&E>                                           1,754
<DEPRECIATION>                                     527
<TOTAL-ASSETS>                                  23,555
<CURRENT-LIABILITIES>                            6,906
<BONDS>                                             11
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           111
<OTHER-SE>                                      16,530
<TOTAL-LIABILITY-AND-EQUITY>                    23,555
<SALES>                                         20,556
<TOTAL-REVENUES>                                20,581
<CGS>                                           10,491
<TOTAL-COSTS>                                   10,491
<OTHER-EXPENSES>                                 7,989
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  65
<INCOME-PRETAX>                                  2,036
<INCOME-TAX>                                       834
<INCOME-CONTINUING>                              1,202
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     1,202
<EPS-PRIMARY>                                     0.12
<EPS-DILUTED>                                     0.10
        

</TABLE>
