This part is a kind of semiconductor called 2N3055HV.

Function of this product has NPN Power Transistor.

Manufacturers : CDIL

Image and pinout :

Some of the text within the PDF file :

Continental Device India Limited An IS/ISO 9002 and IECQ Certified Manufacturer IS/ISO 9002 Lic# QSC/L-000019.3 NPN POWER TRANSISTOR 2N3055HV TO-3 Metal Can Package Switching Regulator and Power Amplifier Applications ABSOLUTE MAXIMUM RATINGS DESCRIPTION Collector Base Voltage ( Open Emitter) Collector Emitter Voltage (Open Base) Emitter Base Voltage Collector Current Base Current Total Power Dissipation up toTc=25ºC Junction Temperature Storage Temperature THERMAL RESISTANCE Junction to Case Rth(j-c) 1.75 ºC/W SYMBOL VCBO VCEO VEBO IC IB Ptot Tj Tstg VALUE 100 100 7.0 15 7.0 100 200 - 65 to +200 UNITS V V V A A W ºC ºC ELECTRICAL CHARACTERISTICS (TC=25ºC unless specified otherwise) DESCRIPTION Breakdown Voltages VCEO(sus)* VCBO VEBO ICEX ICEX Collector Cut off Current Emitter Cu [ ... ]

2N3055HV PDF Datasheet Download