View std40nf06 datasheet:

STD40NF06 N-CHANNEL 60V - 0.024 ? - 40A DPAK STripFET™ II POWER MOSFET TYPE VDSS RDS(on) ID STD40NF06 60 V <0.028 ? 40 A TYPICAL RDS(on) = 0.024 ? EXCEPTIONAL dv/dt CAPABILITY 100% AVALANCHE TESTED SURFACE-MOUNTING DPAK (TO-252) 3 POWER PACKAGE IN TAPE & REEL 1 (SUFFIX “T4") DPAK TO-252 DESCRIPTION (Suffix “T4”) This Power MOSFET is the latest development of STMicroelectronis unique "Single Feature Size™" strip- based process. The resulting transistor shows extremely high packing density for low on-resistance, rugged avalanche characteristics and less critical alignment steps therefore a remarkable manufacturing INTERNAL SCHEMATIC DIAGRAM reproducibility. APPLICATIONS HIGH CURRENT, HIGH SWITCHING SPEED MOTOR CONTROL , AUDIO AMPLIFIERS SOLENOID AND RELA