NPN Silicon AF and Switching Transistor (High breakdown voltage Low collector-emitter saturation voltage) NPN硅自动对焦和开关晶体管(高击穿电压低集电极发射极饱和电压) Silicon N-Channel MOSFET Tetrode (For low noise, high gain controlled input stages up to 1GHz Operating voltage 12V Integrated stabilized bias network From old datasheet system