This part is a kind of semiconductor called BC337.

Function of this product has Amplifier Transistor.

Manufacturers : Motorola Inc

Image and pinout :

Some of the text within the PDF file :

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by BC337/D Amplifier Transistors NPN Silicon COLLECTOR 1 BC337,-16,-25,-40 BC338,-16,-25,-40 2 BASE 3 EMITTER MAXIMUM RATINGS Rating Symbol BC337 BC338 Unit Collector – Emitter Voltage Collector – Base Voltage Emitter – Base Voltage Collector Current Continuous Total Device Dissipation @ TA = 25°C Derate above 25°C VCEO VCBO VEBO IC PD 45 25 50 30 5.0 800 625 5.0 Vdc Vdc Vdc mAdc mW mW/°C Total Device Dissipation @ TC = 25°C Derate above 25°C PD 1.5 Watt 12 mW/°C Operating and Storage Junction Temperature Range TJ, Tstg – 55 to +150 °C THERMAL CHARACTERISTICS Characteristic Symbol Max Unit Thermal Resistance, Junction to Ambient RqJA 200 °C/W Thermal Resistance, Junction to Case RqJC [ ... ]

BC337 PDF Datasheet Download