This part is a kind of semiconductor called MURF820.

Function of this product has ULTRAFAST RECTIFIER.

Manufacturers : Motorola

Image and pinout :

Some of the text within the PDF file :

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MURF820/D Advance Information SWITCHMODE ™ Power Rectifier Designed for use in switching power supplies, inverters and as free wheeling diodes, these state–of–the–art devices have the following features: • • • • • • • • Ultrafast 35 ns Recovery Times 150°C Operating Junction Temperature Epoxy Meets UL94, VO @ 1/8″ High Temperature Glass Passivated Junction Low Leakage Specified @ 150°C Case Temperature Current Derating @ Both Case and Ambient Temperatures Electrically Isolated. No Isolation Hardware Required. UL Recognized File #E69369(1) 1 3 MURF820 Motorola Preferred Device ULTRAFAST RECTIFIER 8 AMPERES 200 VOLTS Mechanical Characteristics • Case: Epoxy, Molded • Weight: 1.9 grams (approxim [ ... ]

MURF820 PDF Datasheet Download