This part is a kind of semiconductor called 2N3773.

Function of this product has NPN SILICON PLANAR POWER TRANSISTOR.

Manufacturers : CDIL

Image and pinout :

Some of the text within the PDF file :

Continental Device India Limited An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company NPN SILICON PLANAR POWER TRANSISTOR 2N3773 TO-3 Metal Can Package Complementary 2N6609 General Purpose Amplifier specially suited for Power Conditioning Applications ABSOLUTE MAXIMUM RATINGS DESCRIPTION Collector Base Voltage Collector Emitter Voltage Collector Emitter Voltage Emitter Base Voltage Collector Current Continuous Peak (1) Base Current Continuous Peak (1) Power Dissipation @ Tc=25ºC Derate Above 25ºC Operating and Storage Junction Temperature Range SYMBOL VCBO VCEO VCEX VEBO IC IB PD Tj, Tstg VALUE 160 140 160 7 16 30 4 15 150 0.855 - 65 to +200 THERMAL RESISTANCE Junction to Case Rth(j-c) (1) Pulse Test: Pulse Width =5ms, Duty Cycle<10% 1.17 ELECTRICAL CHARACTERISTICS (TC=25 [ ... ]

2N3773 PDF Datasheet Download