SemiconductorOR-3H7C-TP-G is an optocoupler manufactured by Orient Semiconductor, a manufacturer of electronic components and devices. It consists of a 4-pin surface-mountable device with a built-in LED and a photodiode located in a single package. It has an isolation voltage rating of 5,000VRMS for 1 minute. The optocoupler is designed to both block and transfer electrical signals between two circuits while maintaining electrical isolation. Its design makes it suitable for various SMPS applications, industrial control systems, and various other high isolation environments. Additionally, this device is RoHS compliant and follows strict environmental regulations.