We can supply ultra-high power light triggered thyristors with good quality and competitive price. Their features are phase control thyristors, light triggered with integrated overvoltage protection, full blocking capability at 120 centigrade with 50Hz, high surge currents and low themal resistaance by using low temperature-connection NTV between silicon wafer and molybdenum, electro-active passivation by a-C: H. They are applied in HVDC engineering project. If you are interested in them, please contact me.