This part is a kind of semiconductor called MUR1650CT.
Function of this product has Ultrafast Recovery Rectifier.
Manufacturers : Inchange Semiconductor
Image and pinout :

Some of the text within the PDF file :
INCHANGE Semiconductor Ultrafast Recovery Rectifier Product Specification MUR1650CT FEATURES ·Ultrafast Recovery Time ·Low Forward Voltage ·Low Leakage Current ·175℃ Operating Junction Temperature ·High Temperature Glass Passivated Junction MECHANICAL CHARACTERISTICS ·Case: Epoxy, Molded ·Finish: All External Surfaces Corrosion Resistant and Terminal Leads are Readily Solderable ·Lead Temperature for Soldering Purposes: 260℃ Max. for 10 Seconds APPLICATIONS ·Designed for use in switching power supplies, inverters and as free wheeling diodes. ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL PARAMETER VALUE UNIT VRRM VRW M VR IF(AV) Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage Average Rectified Forward Current Per Leg (Rated VR) Total De [ ... ]
MUR1650CT PDF Datasheet Download
