View stw7na90 datasheet:

STW7NA90 STH7NA90FI ® N - CHANNEL 900V - 1.05? - 7A - TO-247/ISOWATT218 FAST POWER MOSFET TYPE VDSS RDS(on) ID STW7NA90 900 V < 1.3 ? 7 A STH7NA90FI 900 V < 1.3 ? 4.7 A TYPICAL R = 1.05 ? DS(on) ± 30V GATE TO SOURCE VOLTAGE RATING 100% AVALANCHE TESTED REPETITIVE AVALANCHE DATA AT 100oC LOW INTRINSIC CAPACITANCE 3 3 2 GATE CHARGE MINIMIZED 2 1 1 REDUCED VOLTAGE SPREAD APPLICATIONS TO-247 ISOWATT218 HIGH CURRENT, HIGH SPEED SWITCHING SWITCH MODE POWER SUPPLY (SMPS) CONSUMER AND INDUSTRIAL LIGHTING DC-AC CONVERTER FOR WELDING EQUIPMENT AND UNINTERRUPTABLE INTERNAL SCHEMATIC DIAGRAM POWER SUPPLY (UPS) ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit STW7NA90 STH7NA90FI VDS Drain-source Voltage (VGS = 0) 900 V VDGR Drain- gate Voltage (RGS =