Kyosan Clearup fuses are designed and manufactured as a semiconductor protecting fuse with its own unique features. Various types and amperage, some with a built in trip indicator. Most are used particularly for protecting diode / thyristor modules circuits and transistor module circuits. Used on Japanese machine tools, communication & X-ray equipment etc and found common in AC /DC spindle drives and servo drives by leading Japanese manufactures including Toshiba, Fanuc, Yaskawa, Mitsubishi that are using the latest technology in industrial electronics.