The BC847CT116 is a bipolar NPN transistor manufactured by ROHM. This transistor has three pins: the collector (C), the base (B), and the emitter (E). It can operate at a maximum voltage of 45V, current of 1mA, and a maximum power dissipation of 625mW. It has excellent switching characteristics and good levels of electrical noise immunity. It is mainly used for amplifying, switching, and in voltage regulator circuits.