View bsp319 datasheet:

BSP 319 SIPMOS ® Small-Signal Transistor • N channel • Enhancement mode • Logic Level • Avalanche rated • VGS(th) = 1.2 ...2.0 V Pin 1 Pin 2 Pin 3 Pin 4 G D S D Type VDS ID RDS(on) Package Marking BSP 319 50 V 3.8 A 0.07 ? SOT-223 BSP 319 Type Ordering Code Tape and Reel Information BSP 319 Q67000-S273 E6327 Maximum Ratings Parameter Symbol Values Unit Continuous drain current ID A TA = 29 ?C 3.8 DC drain current, pulsed IDpuls TA = 25 ?C 15 Avalanche energy, single pulse EAS mJ ID = 3.8 A, VDD = 25 V, RGS = 25 ? L = 6.2 mH, Tj = 25 ?C 90 Gate source voltage VGS ± 20 V ESD Sensitivity (HBM) as per MIL-STD 883 Class 1 Power dissipation Ptot W TA = 25 ?C 1.8 Data Sheet 1 05.99 BSP 319 Maximum Ratings Parameter Symbol Values Unit Chip or operating temperature Tj