The PC817C Optocoupler with Phototransistor Output from Goodwork is a small outline device, suitable for surface mount applications. It contains a phototransistor output and has an isolation voltage of 5000 V. The component is RoHS compliant, and the insulation magnitude is 4500 Vrms. It has a typical CTR at 5mA of 550-800%, a typical CTR at 10mA of 200-500%, a typical CTR at 20mA of 100-300%, and a typical CTR at 50mA of 50-100%. The ambient temperature range of storage and operation is -40 to +85 degrees Celsius. The PC817C also features a high dielectric strength between input and output, and a low saturation voltage.