The CMA20E1600PZ-TUB is a power thyristor SCR manufactured by IXYS. It is a two-terminal, bidirectional controllable switch, or gate, that switches high power (greater than 1 kW) and high voltage (greater than 800 V). It is designed for high-voltage, high-current applications such as motor control, phase control, and switching in AC and DC applications. The SCR has a maximum current rating of 1600A, a maximum voltage of 800V, and a gate triggering voltage of =1V. The device is encapsulated in a TO-263-D2 package.