Part Number : 5R520P
Function : 550V, CoolMOS Power Transistor
Package : TO-220
Maker : Infineon Technologies
Pinouts : 
Description :
CoolMOS CP, Infineon's fifth series of CoolMOS, is designed for hard and soft switching topologies, CCM PFC as well as PWM for ATX, notebook adapter PDP and LCD TV.
• Lowest figure of merit RONx Qg
• Ultra low gate charge
• Extreme dv/dt rated
• High peak current capability
• Pb-free lead plating; RoHS compliant
• Quailfied according to JEDEC for target applications
Datasheet PDF Download : 
Others datasheet of same file : 5R520, IPP50R520CP
