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

                                       
<PERIOD-TYPE>                               12-MOS
<FISCAL-YEAR-END>                                            DEC-31-1999
<PERIOD-END>                                                 DEC-31-1999
<CASH>                                                        31,382,629
<SECURITIES>                                                   2,253,039
<RECEIVABLES>                                                 19,476,513
<ALLOWANCES>                                                     661,000
<INVENTORY>                                                   24,210,654
<CURRENT-ASSETS>                                              77,107,655
<PP&E>                                                        67,713,590
<DEPRECIATION>                                                31,691,882
<TOTAL-ASSETS>                                               125,249,282
<CURRENT-LIABILITIES>                                         14,033,345
<BONDS>                                                                0
<COMMON>                                                       1,054,251
<PREFERRED-MANDATORY>                                                  0
<PREFERRED>                                                            0
<OTHER-SE>                                                   109,199,686
<TOTAL-LIABILITY-AND-EQUITY>                                 125,249,282
<SALES>                                                      119,463,650
<TOTAL-REVENUES>                                             119,463,650
<CGS>                                                         76,112,866
<TOTAL-COSTS>                                                 95,614,854
<OTHER-EXPENSES>                                                       0
<LOSS-PROVISION>                                                       0
<INTEREST-EXPENSE>                                                     0
<INCOME-PRETAX>                                               24,726,033
<INCOME-TAX>                                                   3,435,000
<INCOME-CONTINUING>                                           24,726,833
<DISCONTINUED>                                                         0
<EXTRAORDINARY>                                                        0
<CHANGES>                                                              0
<NET-INCOME>                                                  24,726,833
<EPS-BASIC>                                                       2.03
<EPS-DILUTED>                                                       1.98