The TS820-600T is a Thyristor manufactured by STMicroelectronics. It is a 600V, 5A, 8A, 200uA device that comes in a tube package with Through-Hole Termination (THT) in TO220AB shape. It is a medium power semiconductor device used for AC control and static switching applications, with low turn-on losses. It is mainly used in power regulation, load switching, soft start, and protection circuits.