This part is a kind of semiconductor called 2N2218.

Function of this product has NPN SILICON PLANAR SWITCHING TRANSISTORS.

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 SWITCHING TRANSISTORS 2N2218 2N2219 TO-39 Metal Can Package 2N2218 TO 2N2222 Are NPN Silicon Small Signal General Purpose Amplifier And Switch Switching and Linear Application DC and VHF Amplifier Applications ABSOLUTE MAXIMUM RATINGS (Ta=25ºC unless specified otherwise) DESCRIPTION SYMBOL 2N2218, 19 Collector Emitter Voltage Collector Base Voltage Emitter Base Voltage Collector Current Continuous Power Dissipation @Ta=25ºC Derate Above 25ºC VCEO VCBO VEBO IC PD 30 60 5 800 800 4.57 Power Dissipation @ Tc=25ºC PD 3 Derate Above 25ºC 17.1 Operating and Storage Junction Tj, Tstg -65 to +200 Temperature Range UNIT V V V mA mW mW/ºC W mW/ºC ºC ELECTRICAL CH [ ... ]

2N2218 PDF Datasheet Download