MD series diode module from 25A to 1000A at 100-3000V, MDS are very popular in Korea. MT series thyristor module from 25A to 1000A at 100-3000V, MTK and MTC are popular in Europe. They are main used in AC/DC converters, DC power supplies, machine tool controls, battery charges, DC motor control and drives. We also produce a module special for welding machine. Mitsubish module is improved successfully now.