WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE. <ARTICLE> 5 <MULTIPLIER> 1,000 		 Supertex, Inc. 		 Financial Data Schedule 	 For Three Months ended June 30, 1998 		 (in thousands) <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> MAR-31-1999 <PERIOD-END> JUN-30-1998 <CASH> 22,498 <SECURITIES> 12,356 <RECEIVABLES> 9,504 <ALLOWANCES> 706 <INVENTORY> 10,591 <CURRENT-ASSETS> 56,828 <PP&E> 27,369 <DEPRECIATION> 15,060 <TOTAL-ASSETS> 69,137 <CURRENT-LIABILITIES> 9,630 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 20,800 <OTHER-SE> 38,707 <TOTAL-LIABILITY-AND-EQUITY> 69,137 <SALES> 13,001 <TOTAL-REVENUES> 13,001 <CGS> 6,907 <TOTAL-COSTS> 10,100 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 35 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 3,342 <INCOME-TAX> 1,135 <INCOME-CONTINUING> 2,207 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 2,207 <EPS-PRIMARY> .18 <EPS-DILUTED> .18