This part is a kind of semiconductor called G20N50C.
Function of this product has SIHG20N50C.
Manufacturers : Vishay
Image and pinout :

Some of the text within the PDF file :
SiHG20N50C Vishay Siliconix Power MOSFET PRODUCT SUMMARY VDS (V) at TJ max. RDS(on) (Ω) Qg (Max.) (nC) Qgs (nC) Qgd (nC) Configuration VGS = 10 V 76 21 34 Single D FEATURES 560 0.270 TO-247AC • Halogen-free According to IEC 61249-2-21 Definition • Low Figure-of-Merit Ron x Qg • 100 % Avalanche Tested • High Peak Current Capability • dV/dt Ruggedness • Improved Trr/Qrr • Improved Gate Charge • High Power Dissipations Capability • Compliant to RoHS Directive 2002/95/EC G S D G S N-Channel MOSFET ORDERING INFORMATION Package Lead (Pb)-free Lead (Pb)-free and Halogen-free TO-247AC SiHG20N50C-E3 SiHG20N50C-GE3 ABSOLUTE MAXIMUM RATINGS (TC = 25 °C, unless otherwise noted) PARAMETER Drain-Source Voltage Gate-Source Voltage Continuous Drain Current (TJ = 150 °C)e Puls [ ... ]
G20N50C PDF Datasheet Download
