View irf840 841 th datasheet:

IRF840/FI IRF841/FI N - CHANNEL ENHANCEMENT MODE POWER MOS TRANSISTORS TYPE VDSS RDS(on) ID IRF840 500 V < 0.85 ? 8 A IRF840FI 500 V < 0.85 ? 4.5 A IRF841 450 V < 0.85 ? 8 A IRF841FI 450 V < 0.85 ? 4.5 A TYPICAL R = 0.74 ? DS(on) AVALANCHE RUGGED TECHNOLOGY 3 3 100% AVALANCHE TESTED 2 2 1 1 REPETITIVE AVALANCHE DATA AT 100oC APPLICATIONS TO-220 ISOWATT220 HIGH CURRENT, HIGH SPEED SWITCHING SWITCH MODE POWER SUPPLIES (SMPS) CHOPPER REGULATORS, CONVERTERS, MOTOR CONTROL, LIGHTING FOR INDUSTRIAL AND CONSUMER ENVIRONMENT INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit IRF 840 841 840FI 841FI VDS Drain-source Voltage (VGS = 0) 500 450 500 450 V V Drain- gate Voltage (R = 20 k?) 500 450 500 450 V DGR GS VGS Gate-source Volta