View stp6n25 datasheet:

STP6N25 STP6N25FI N - CHANNEL ENHANCEMENT MODE POWER MOS TRANSISTORS PRELIMINARY DATA TYPE VDSS RDS(on) ID STP6N25 250 V < 1 ? 6 A STP6N25FI 250 V < 1 ? 4 A TYPICAL R = 0.7 ? DS(on) AVALANCHE RUGGED TECHNOLOGY 100% AVALANCHE TESTED REPETITIVE AVALANCHE DATA AT 100oC 3 3 2 2 APPLICATION ORIENTED 1 1 CHARACTERIZATION APPLICATIONS TO-220 ISOWATT220 HIGH SPEED SWITCHING UNINTERRUPTIBLE POWER SUPPLY (UPS) MOTOR CONTROL, AUDIO AMPLIFIERS INDUSTRIAL ACTUATORS DC-DC & DC-AC CONVERTERS FOR INTERNAL SCHEMATIC DIAGRAM TELECOM, INDUSTRIAL AND CONSUMER ENVIRONMENT PARTICULARLY SUITABLE FOR ELECTRONIC FLUORESCENT LAMP BALLASTS ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit STP6N25 STP6N25FI VDS Drain-source Voltage (VGS = 0) 250 V VDGR Drain- gate Vo