Tag: bc109 characteristics

The BC109 is a high-gain, low-noise NPN transistor widely used in precision audio and signal-processing applications. This article covers the full BC109 pinout, key features, complete datasheet specifications, working principle, common applications, equivalents, and frequently asked questions. It is a valuable guide for students, hobbyists, and engineers designing low-power, low-noise analog circuits. Introduction The BC109 […]