This part is a kind of semiconductor called G4BC30FD.
Function of this product has IRG4BC30FD.
Manufacturers : International Rectifier
Image and pinout :

Some of the text within the PDF file :
PD -91451B IRG4BC30FD INSULATED GATE BIPOLAR TRANSISTOR WITH ULTRAFAST SOFT RECOVERY DIODE Features C • Fast: Optimized for medium operating frequencies ( 1-5 kHz in hard switching, >20 kHz in resonant mode). • Generation 4 IGBT design provides tighter parameter distribution and higher efficiency than G Generation 3 • IGBT co-packaged with HEXFREDTM ultrafast, ultra-soft-recovery anti-parallel diodes for use in E n-channel bridge configurations • Industry standard TO-220AB package Benefits • Generation -4 IGBT's offer highest efficiencies available • IGBT's optimized for specific application conditions • HEXFRED diodes optimized for performance with IGBT's . Minimized recovery characteristics require less/no snubbing • Designed to be a "drop-in" replaceme [ ... ]
G4BC30FD PDF Datasheet Download
