This part is a kind of semiconductor called YG902C2.
Function of this product has 10 Ampere Dual Common Cathode Ultra Fast Recovery Half Bridge Rectifiers.
Manufacturers : Thinki Semiconductor
Image and pinout :
Some of the text within the PDF file :
YG902C2 thru YG902C6 ® Pb Free Plating Product YG902C2 thru YG902C6 Pb 10 Ampere Dual Common Cathode Ultra Fast Recovery Half Bridge Rectifiers Features Latest GPP technology with super fast recovery time Low forward voltage drop High current capability Low reverse leakage current High surge current capability Application Automotive Inverters and Solar Inverters Plating Power Supply,SMPS,EPS and UPS Car Audio Amplifiers and Sound Device Systems ITO-220AB Unit:mm Mechanical Data Case: Fully Insulated Molding TO-220F Epoxy: UL 94V-0 rate flame retardant Terminals: Solderable per MIL-STD-202 method 208 Polarity: As marked on diode body Mounting position: Any Weight: 2.0 gram approximately Case Case Case Case Positive Negative Common Cathode Common Anode Suffix "C2" Suffix " [ ... ]