IEC, UL, CSA. VDE, UL. Schurter UMT 250 Fuses. Schurter UMT fuses offer primary protection on SMD PCB's. There are several applications that are suited to the performance characteristics of the UMT SMD fuse. These applications include industrial electronic, sensors, power supplies, explosion protection and lighting. Surface Mount High current range up to 10A High breaking capacity Compact design