Description- BC548 is a general-purpose NPN  bipolar junction transistor commonly used in electronic equipment. It has a gain value of 110 to 800. The maximum amount of current that could flow through the Collector pin is 500mA. 

Specifications- -Transistor type  :  NPN Transistor -Collector current  :  500mA -Emitter Base Voltage  :  5V -Base Current  :  5mA -DC Current Gain (hFE) : 110-800 -Operating Temperature Range : - 55 - 150°C

Applications / Suggested Uses - Relay Driver LED driver Audio amplifier Signal Amplifier