2N3055 | transistor datasheet | amplifier circuit | equivalent STMicroelectronics

amplifier circuit diagram 2n3055

2N3055 Pinout

The 2N3055 is a widely used NPN power transistor housed in a TO-3 metal package, ideal for high-power applications such as audio amplifiers, power supplies, and motor drivers. Understanding the pin configuration is crucial for proper integration into electronic circuits, especially since the collector is connected directly to the metal case.

With its robust construction and clearly defined pinout—Base, Emitter, and Collector (case)—the 2N3055 ensures reliable performance in both switching and linear modes. Proper heat sinking and isolation considerations should be applied during installation to maximize efficiency and device longevity.