This part is a kind of semiconductor called P5NC50FP.
Function of this product has STP5NC50FP.
Manufacturers : ST Microelectronics
Image and pinout :

Some of the text within the PDF file :
STP5NC50 - STP5NC50FP STB5NC50 - STB5NC50-1 N-CHANNEL 500V - 1.3Ω - 5.5A TO-220/FP/D2PAK/I2PAK PowerMesh™ II MOSFET TYPE STP5NC50 STP5NC50FP STB5NC50 STB5NC50-1 s s s s s VDSS 500 500 500 500 V V V V RDS(on) < 1.5Ω < 1.5Ω < 1.5Ω < 1.5Ω ID 5.5A 5.5A 5.5A 5.5A 3 1 TYPICAL RDS(on) = 1.3Ω EXTREMELY HIGH dv/dt CAPABILITY 100% AVALANCHE TESTED NEW HIGH VOLTAGE BENCHMARK GATE CHARGE MINIMIZED TO-220 D2PAK TO-220FP 3 12 DESCRIPTION The PowerMESH™ II is the evolution of the first generation of MESH OVERLAY™ . The layout refinements introduced greatly improve the Ron*area figure of merit while keeping the device at the leading edge for what concerns swithing speed, gate charge and ruggedness. APPLICATIONS s HIGH CURRENT, HIGH SPEED SWITCHING s SWITH MODE POWER SUPPLIES (S [ ... ]
P5NC50FP PDF Datasheet Download
