<ARTICLE>                  5
<LEGEND>
     THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM BEL
     FUSE INC. AND SUBSIDIARIES FINANCIAL STATEMENTS AT MARCH 31, 1999 AND
     THE THREE MONTHS THEN ENDED AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
     TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>      1

       
                                  
<PERIOD-TYPE>                        3-MOS
<FISCAL-YEAR-END>                                      DEC-31-1999
<PERIOD-END>                                           MAR-31-1998
<CASH>                                                  14,775,437
<SECURITIES>                                                     0
<RECEIVABLES>                                           20,538,391
<ALLOWANCES>                                               317,000
<INVENTORY>                                             23,735,441
<CURRENT-ASSETS>                                        59,773,578
<PP&E>                                                  63,937,385
<DEPRECIATION>                                          28,279,202
<TOTAL-ASSETS>                                         108,693,732
<CURRENT-LIABILITIES>                                   13,634,690
<BONDS>                                                          0
<COMMON>                                                   523,039
<PREFERRED-MANDATORY>                                            0
<PREFERRED>                                                      0
<OTHER-SE>                                              93,428,003
<TOTAL-LIABILITY-AND-EQUITY>                           108,693,732
<SALES>                                                 30,758,768
<TOTAL-REVENUES>                                        30,758,768
<CGS>                                                   20,314,606
<TOTAL-COSTS>                                           25,119,477
<OTHER-EXPENSES>                                                 0
<LOSS-PROVISION>                                                 0
<INTEREST-EXPENSE>                                               0
<INCOME-PRETAX>                                          5,791,033
<INCOME-TAX>                                               670,000
<INCOME-CONTINUING>                                      5,121,033
<DISCONTINUED>                                                   0
<EXTRAORDINARY>                                                  0
<CHANGES>                                                        0
<NET-INCOME>                                             5,121,033
<EPS-PRIMARY>                                                  .98
<EPS-DILUTED>                                                  .95