View buz11 datasheet:

BUZ11 BUZ11FI N - CHANNEL ENHANCEMENT MODE POWER MOS TRANSISTORS TYPE V R I DSS DS(on) D BUZ11 50 V < 0.04 ? 36 A BUZ11FI 50 V < 0.04 ? 21 A TYPICAL RDS(on) = 0.03 ? AVALANCHE RUGGED TECHNOLOGY 100% AVALANCHE TESTED REPETITIVE AVALANCHE DATA AT 100oC 3 3 LOW GATE CHARGE 2 2 1 1 HIGH CURRENT CAPABILITY 175oC OPERATING TEMPERATURE TO-220 ISOWATT220 APPLICATIONS HIGH CURRENT, HIGH SPEED SWITCHING SOLENOID AND RELAY DRIVERS REGULATORS DC-DC & DC-AC CONVERTERS MOTOR CONTROL, AUDIO AMPLIFIERS AUTOMOTIVE ENVIRONMENT (INJECTION, INTERNAL SCHEMATIC DIAGRAM ABS, AIR-BAG, LAMPDRIVERS, Etc.) ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit BUZ11 BUZ11FI VDS Drain-source Voltage (VGS = 0) 50 V VDG R Drain- gate Voltage (RGS = 20 k?)50 V VGS Gate-source V