BUY THYRISTOR CONTROLLED SILICON BTA12-600B https://www.utsource.net/itm/p/8647670.html

Description: The BTA12-600B is a three-terminal, thyristor-controlled silicon device in a TO-220 package. It is designed for use in applications such as motor control, lighting control, and power supplies. Features: High blocking voltage of 600V Low on-state voltage drop of 1.2V Low gate trigger current of 10mA Low gate trigger voltage of 1.3V Low thermal resistance High surge current capability High commutation speed Applications: Motor control Lighting control Power supplies Heating control AC and DC switching applications (For reference only)