The H1200NC25Y from Littelfuse is a Fast Symmetrical Gate Turn-Off Thyristor that is ideal for high-power commercial and industrial applications. It has a break-over voltage of up to 2500 V and a break-over current of less than 1200 A. This GTO thyristor has a gate trigger voltage of 1 V and a gate trigger current of up to 2.5 A. It is available in a surface-mount package that measures 47.1 x 28 mm.