The TLP185GB-S with Optocouplers SOP-4 RoHS is a 4-pin optocoupler developed by Youtai. It is a single-channel photo isolator that integrates a light emitting diode and a photo-transistor in a small package and is designed for isolation between input and output with small to medium currents. This part can be used for applications such as signal transfer, signal load protection, power supply isolation, and control circuit isolation. It has a 5.2 kV isolation voltage, a 6 mA forward current, and a low 8 µs typical response time. The RoHS certification designates it to be compliant with the standards of the European Union that restrict the use of hazardous substances. The TLP185GB-S comes in a SOP4 package and is compliant with the RoHS directive.