This part is a kind of semiconductor called P0550AD.

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

Manufacturers : UNIKC

Image and pinout :

Some of the text within the PDF file :

P0550AD N-Channel Enhancement Mode MOSFET PRODUCT SUMMARY V(BR)DSS 500V RDS(ON) 1.5Ω @VGS = 10V ID 5A TO-252 ABSOLUTE MAXIMUM RATINGS (TA = 25 ° C Unless Otherwise Noted) PARAMETERS/TEST CONDITIONS Drain-Source Voltage Gate-Source Voltage Continuous Drain Current2 Pulsed Drain Current Avalanche Current Avalanche Energy Power Dissipation 1,2 SYMBOL VDS VGS LIMITS 500 ±30 5 3 15 5 128 89 36 -55 to 150 UNITS V TC = 25 ° C TC = 100 ° C ID IDM IAS A L = 10mH TC = 25 ° C TC = 100 ° C EAS PD TJ, TSTG mJ W ° C Operating Junction & Storage Temperature Range THERMAL RESISTANCE RATINGS THERMAL RESISTANCE Junction-to-Case Junction-to-Ambient 1 2 SYMBOL RqJC RqJA TYPICAL MAXIMUM 1.4 62.5 UNITS ° C/W Pulse width limited by maximum junction temperature. Limited only by maximum [ ... ]

P0550AD PDF Datasheet Download