This part is a kind of semiconductor called G4PF50WD.

Function of this product has IRG4PF50WD.

Manufacturers : International Rectifier

Image and pinout :

Some of the text within the PDF file :

PD- 91788 IRG4PF50WD INSULATED GATE BIPOLAR TRANSISTOR WITH ULTRAFAST SOFT RECOVERY DIODE Features • Optimized for use in Welding and Switch-Mode Power Supply applications • Industry benchmark switching losses improve efficiency of all power supply topologies • 50% reduction of Eoff parameter G • Low IGBT conduction losses • Latest technology IGBT design offers tighter parameter distribution coupled with exceptional reliability • IGBT co-packaged with HEXFREDTM ultrafast, ultra-soft-recovery anti-parallel diodes for use in bridge configurations • Industry standard TO-247AC package Benefits • Lower switching losses allow more cost-effective operation and hence efficient replacement of larger-die MOSFETs up to 100kHz • HEXFREDTM diodes optimized for perfo [ ... ]

G4PF50WD PDF Datasheet Download