Introduction to BC549, BC549, basics of BC549, BC549 intro, bc549 datasheet, bc549 pinout, bc549 pin description Hi Friends! I hope you’re well today. I welcome you on board. In this post, I’m going to discuss the Introduction to BC549. BC549 is a general purpose bipolar junction transistor that belongs to NPN transistor family. It contains three pins where small current change in one terminal produces a much ...