RS04K08-E with TO-252-3 TRIACs ROHS is a device manufactured by Haoruijia. It is a bidirectional semiconductor switch that is designed to control AC power. The package size is TO-252-3 and is compliant with the RoHS Directive 2011/65/EU. It features high voltage switching performance, low leakage current, high dv/dt capability, and has a voltage rating of 800V. The current rating of the device is 8A and has a RMS current rating value of 12A. It is suitable for switching applications such as motor control, lighting control, automotive electronics, and thermostats. The device is widely used in household appliances, lighting and industrial automation.