The SMD ceramic fuses of the UMT-H family have been expanded in the form of a 40 A and a 50 A version. Schurter now offers the UMT-H with its Time-Lag T characteristic in a total of 26 rated currents between 160 mA and 50 A. The UMT-H SMD ceramic fuse now covers a current range from 160 mA to 50 A at voltages of up to 277 VAC and 250 VDC. This makes the cuboid fuse ideal for cost-efficient automated assembly. Its large solder pads ensure excellent heat dissipation.
Applications
The UMT-H was specially developed for primary protection in industrial electronics at nominal voltages of up to 277 VAC. Additional areas of application are energy supply, medical technology and telecommunications as well as e-mobility. New market developments show that currents of 40 A and 50 A are increasingly needed for battery-powered applications.
High inrush currents and impermeability to potting compound
The UMT-H is predestined for use in applications with high inrush currents (e.g. motors) due to its Time-Lag T characteristic. But also newer applications, which increasingly rely on powerful accumulators, often require slow tripping. The UMT-H remains tight with most commercially available potting compounds. Therefore, this fuse is especially suitable for high demands. In addition, the high breaking capacity of 1500 A and the cap distance of >10 mm make the UMT-H a fitted choice for explosion protection.
