The PC817X1CSP9F is an optocoupler with a transistor output manufactured by Sharp. It is designed to safely isolate signals between different voltage range circuits. The component features a peak output current of 100mA, a control voltage range of 1.5-5.5V, a collector-emitter voltage of 80V, and a dielectric isolation of 5,000Vrms. It is in an SO-4 plastic package that requires no sockets. The PC817X1CSP9F is suitable for use in logic interfaces, motor control, and industrial automation applications.