View std2na50 datasheet:

STD2NA50 N - CHANNEL ENHANCEMENT MODE POWER MOS TRANSISTOR PRELIMINARY DATA TYPE V R I DSS DS(on) D STD2NA50 500 V < 4 ? 2.2 A TYPICAL R = 3.25 ? DS(on) ± 30V GATE TO SOURCE VOLTAGE RATING 100% AVALANCHE TESTED REPETITIVE AVALANCHE DATA AT 100oC 3 LOW INTRINSIC CAPACITANCES 3 2 GATE CHARGE MINIMIZED 1 1 REDUCED THRESHOLD VOLTAGE SPREAD THROUGH-HOLE IPAK (TO-251) POWER PACKAGE IN TUBE (SUFFIX "-1") IPAK DPAK SURFACE-MOUNTING DPAK (TO-252) TO-251 TO-252 POWER PACKAGE IN TAPE & REEL (Suffix "-1") (Suffix "T4") (SUFFIX "T4") APPLICATIONS MEDIUM CURRENT, HIGH SPEED INTERNAL SCHEMATIC DIAGRAM SWITCHING SWITCH MODE POWER SUPPLIES (SMPS) CONSUMER AND INDUSTRIAL LIGHTING ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VDS Drain-source Voltag