The RS1208B-CW, manufactured by Haoruijia, is a two-way thyristor with a TO-220B package. It is compliant with RoHS standards and has a maximum voltage rating of 800V. The device is a TRIAC, which is a three-terminal alternating current (AC) semiconductor switch. It can be used in applications such as motor speed control, lighting dimmers, and temperature control. Its features include a fast switching speed, wide operating temperature range, and low on-state resistance. The package is available in an epoxy UL 94V-0 rated housing, and has an immunity to static discharge up to 6kV. It is a cost-effective solution for applications requiring a fast switching Thyristor.