View std4n20 datasheet:

STD4N20 N-CHANNEL 200V - 1.2? - 4A DPAK/IPAK MESH OVERLAY™ MOSFET TYPE VDSS RDS(on) ID STD4N20 200 V < 1.5 ? 4 A TYPICAL RDS(on) = 1.2 ? EXTREMELY HIGH dv/dt CAPABILITY 3 100% AVALANCHE TESTED 3 2 ADD SUFFIX “T4” FOR OREDERING IN TAPE & 1 1 REEL DPAK IPAK DESCRIPTION TO-252 TO-251 Using the latest high voltage MESH OVERLAY™ process, STMicroelectronics has designed an ad- vanced family of power MOSFETs with outstanding performance. The new patented STrip layout cou- pled with the Company’s proprietary edge termina- INTERNAL SCHEMATIC DIAGRAM tion structure, makes it suitable in coverters for lighting applications. APPLICATIONS HIGH CURRENT, HIGH SPEED SWITCHING SWITH MODE POWER SUPPLIES (SMPS) DC-DC CONVERTERS FOR TELECOM, INDUSTRIAL, AND LIGHTING EQUI