This is a solid-state relay (SSR) utilizing a MOSFET switch. It features an input LED that requires 3mA for activation and can handle a maximum load current of 1A at up to 400V. The MOSFET has a Ron of 24 ohms, a output capacitance of 115pF, with turn-on time of approximately 0.25 milliseconds and turn-off time of about 0.02 milliseconds. Suitable for applications requiring fast switching and reliable isolation.