The Fairchild/ON Semiconductor HCPL2631 is a high-speed, dual-channel optocoupler that is designed for use in sensing and instrumentation, computers and computer peripherals, and power management applications. This optocoupler has an open-collector output type, a data rate of 10Mbps, and a forward voltage of 1.4V. It is mounted on a surface mount device (SMD) and has a propagation delay of 75ns (tpLH) and 75ns (tpHL). The HCPL2631 has a common mode transient immunity of 5kV/μs and an isolation voltage of 2500Vrms. It is packaged in an 8-MDIP and has a supply voltage of 4.5V to 5.5V. This optocoupler has a medium popularity and sufficient supply and demand status. It is compliant with RoHS regulations and is available in a package of 1k pcs.