SCHURTER UMT-W SMD ceramic fuse

Click2Contact

With the UMT-W, SCHURTER launches a pulse-proof SMD ceramic fuse with super time-lag tripping characteristics, which is particularly suitable as a fail-safe device in demanding applications.

The cuboid shaped (5.3 x 16 mm), compact SMD fuse is available in five rated currents from 5 to 20 A and reaches rated voltages of up to 125 V AC and DC with a breaking capacity of up to 1000 A. It features a slow and precisely defined melting characteristic claimed to be unique for SMD fuses.

The product is recommended wherever high inrush currents flow (eg, motor control systems). It is particularly suitable for applications with long cables (eg, avionics), which are often primarily protected by an electronic fuse. If this monitoring fails, or does not perform its task correctly, the UMT-W takes over as a fail-safe device and transfers the system to a safe, current-less state. Due to the melting times with precise min/max corridor at 4xIn, robust and selective safety concepts can be implemented on top of the electronic fuse.

The fuse is a COTS+ product, having undergone extended fuse qualification tests (eg, AEC-Q200) and highly controlled manufacturing processes, which are available to all SCHURTER customers. The company also offers visual inspection according to MIL-PRF 55342, different types of up-screenings (burn-in) and detailed test reports on request.

View SCHURTER’s selection of fuses here.