This part is a kind of semiconductor called P0903BDL.

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

Manufacturers : UNIKC

Image and pinout :

Some of the text within the PDF file :

P0903BDL N-Channel Enhancement Mode MOSFET PRODUCT SUMMARY V(BR)DSS RDS(ON) 25V 9.5mΩ @VGS = 10V ID 56A TO-252 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 Current Pulsed Drain Current1 TC = 25 °C TC = 100 °C ID IDM 56 35 160 Avalanche Current IAS 34 Avalanche Energy L = 0.1mH EAS 60 Power Dissipation TC = 25 °C TC = 100 °C PD 49 20 Junction & Storage Temperature Range TJ, TSTG -55 to 150 UNITS V A mJ W °C THERMAL RESISTANCE RATINGS THERMAL RESISTANCE Junction-to-Case Junction-to-Ambient 1Pulse width limited by maximum junction temperature. SYMBOL RqJC RqJA TYPICAL MAXIMUM 2.55 63 UNITS °C / W Ver 1.1 1 2013-3-15 [ ... ]

P0903BDL PDF Datasheet Download