2sk694.pdf datasheet:

isc N-Channel MOSFET Transistor 2SK694DESCRIPTIONDrain Current I =12A@ T =25D CDrain Source Voltage-: V =500V(Min)DSSFast Switching Speed100% avalanche testedMinimum Lot-to-Lot variations for robust deviceperformance and reliable operationAPPLICATIONSHigh speed.high Current switching applications.DC converter and motor drive applications.ABSOLUTE MAXIMUM RATINGS(T =25)aSYMBOL ARAMETER VALUE UNITV Drain-Source Voltage (V =0) 500 VDSS GSV Gate-Source Voltage 20 VGSI Drain Current-continuous@ TC=25 12 ADP Total Dissipation@TC=25 150 WtotT Max. Operating Junction Temperature 150 jT Storage Temperature Range -55~150 stgTHERMAL CHARACTERISTICSSYMBOL PARAMETER MAX UNIT/WR Thermal Resistance,Junction to Case 0.83th j-c/WR Thermal Resistance,Junction to Ambient 30th j-a1isc we