The S8050 J3Y is a bipolar transistor manufactured by FOSAN, and meets the ROHS requirements. This transistor is housed in a SOT-23 package, and has a maximum voltage of 40V, a maximum wattage of 300mW, an operating current of 800mA, and a base emitter saturation voltage of 1V at a base current of 50mA. It can handle a collector current of 200mA at 50mA and a collector emitter saturation voltage of 600mV at 500mA. The collector emitter leakage current is 100nA, and the transistor has a switching speed of 150MHz, with a maximum operating temperature of +150?.