DSSK20-0045B is a Discrete Silicon Thyristor designed and manufactured by IXYS Corporation. It is a unidirectional 45 Amp, 800 Volt thyristor with a non-isolated tab. It is designed for use in a variety of power control and rectification applications, such as motor drives, welding systems, phase control, dc control, and phase angle firing. It features low turn-on and turn-off times, fast switching speeds, negligible switching losses, and excellent surge ratings. It is provided in the form of a standard DSN to DSN package.