BC328

The BC328 is a PNP epitaxial silicon bipolar junction transistor manufactured by ON Semiconductor. It is designed for general purpose amplification and low power switching applications. The device features a collector-emitter voltage rating of 25V (generic), a continuous collector current of 800mA, and a power dissipation of 625mW. With a transition frequency of 100 MHz, it is suitable for audio and signal processing circuits up to moderate frequencies. The DC current gain (hFE) is a minimum of 100 at 100mA collector current and 1V collector-emitter voltage, ensuring consistent amplification performance. The collector-emitter saturation voltage is a maximum of 700mV at 50mA base current and 500mA collector current, indicating low on-state losses. The junction temperature rating is 150°C. The device is packaged in a through-hole TO-92-3 (TO-226-3) package, which is easy to handle and suitable for prototyping and low-volume production. The BC328 is RoHS3 compliant, REACH unaffected, and has an MSL of Level 1 (unlimited). This transistor is a common choice for educational kits, audio amplifiers, and general switching circuits.