The OR-815 Optocoupler DIP-4 RoHS is a 4-pin Surface Mount Optocoupler from Orient Semiconductor Electronics Limited. It features an optically isolated output with a current rating of 400mA and a voltage rating of 18V. This electronic part is RoHS (Restriction Of Hazardous Substances) compliant, meaning that it does not contain any hazardous materials or substances which could potentially be harmful to the environment. The optocoupler provides electrical insulation between input and output sections. It also has excellent temperature stability and a wide range of operating voltage and current requirements. It is suitable for applications such as motor controls, automation, industrial automation, 4-20mA loop current/voltage and power control.