This part is a kind of semiconductor called P0903BTG.

Function of this product has N-Channel Enhancement Mode MOSFET.

Manufacturers : UNIKC

Image and pinout :

Some of the text within the PDF file :

P0903BTG N-Channel Enhancement Mode MOSFET PRODUCT SUMMARY V(BR)DSS RDS(ON) 25V 9.5mΩ @VGS = 10V ID 64A TO-220 ABSOLUTE MAXIMUM RATINGS (TA = 25 °C Unless Otherwise Noted) PARAMETERS/TEST CONDITIONS SYMBOL LIMITS Drain-Source Voltage VDS 25 Gate-Source Voltage VGS ±20 Continuous Drain Current2 Pulsed Drain Current 1 TC = 25 °C TC = 100 °C ID IDM 64 40 150 Avalanche Current IAS 35 Avalanche Energy L = 0.1mH EAS 64 Power Dissipation TC = 25 °C TC = 100 °C PD 62.5 25 Operating Junction & Storage Temperature Range TJ, TSTG -55 to 150 UNITS V A mJ W °C THERMAL RESISTANCE RATINGS THERMAL RESISTANCE Junction-to-Case 1Pulse width limited by maximum junction temperature. 2Package limitation current is 58A. SYMBOL RqJC TYPICAL MAXIMUM UNIT 2 °CS/ W Ver 1 [ ... ]

P0903BTG PDF Datasheet Download