BC557 PNP Transistor

The BC557 is a <mark>general-purpose, low-power PNP bipolar junction transistor (BJT)</mark>. Housed in a standard TO-92 package, it is primarily used for small-signal amplification and switching. It features a maximum continuous collector current of -100 mA and a collector-emitter voltage of -45 V.

Pinout Configuration:
When looking at the flat side of the TO-92 package with the leads pointing down, the pins from left to right are:

1. Collector (C)
2. Base (B)
3. Emitter (E) [1]