What are the names of the electrodes of a bipolar junction transistor?

In a bipolar junction transistor (BJT), the three terminals are known as the emitter, base, and collector. Each of these electrodes plays a crucial role in the operation of the transistor.

The emitter is responsible for injecting charge carriers (either electrons or holes depending on the type of BJT) into the base. The base is a thin, lightly doped region that controls the flow of carriers from the emitter to the collector. The collector then collects the charge carriers that have traversed the base region, allowing the transistor to amplify current.

Understanding this configuration is fundamental to utilizing BJTs effectively in electronic circuits, as each terminal has specific functions that contribute to the overall operation of the transistor. This naming convention is widely recognized in the context of BJTs, making it essential knowledge for anyone studying or working with electronics.