This part is a kind of semiconductor called BC548C.

Function of this product has Amplifier Transistors.

Manufacturers : Motorola Inc

Image and pinout :

Some of the text within the PDF file :

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by BC546/D Amplifier Transistors NPN Silicon COLLECTOR 1 BC546, B BC547, A, B, C BC548, A, B, C 2 BASE 3 EMITTER MAXIMUM RATINGS Rating BC BC BC Symbol 546 547 548 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 65 45 30 Vdc 80 50 30 Vdc 6.0 Vdc 100 mAdc 625 mW 5.0 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, Juncti [ ... ]

BC548C PDF Datasheet Download