SCHURTER’s USN 1206 is designed to meet the ever-increasing challenges associated with packing density in power electronics. The new chip fuse offers temperature-sensitivity suitable for both overcurrent protection and protection against excessive ambient temperatures.
The USN 1206 is not a pure thermal fuse, per se. It requires a current flow to blow, thus providing protection against overcurrent, just as well as any conventional fuse. In addition, it is also designed to protect power semiconductors in automotive applications against over-temperature. The fuse has a current-time characteristic which shifts as a function of the ambient temperature. As a result, a specific trigger at a certain threshold value can be achieved with increasing temperature. The 12 A current rated USN 1206 has high I2t values at 32 VDC and a slow blowing characteristic. It has a breaking capacity of 80 A at 32 VDC and 170 A at 16 VDC with an operating temperature range of a -40 degrees C to a +125 degrees C.
The new SCHURTER USN 1206 meets the AEC-Q200 standard making it suitable for automotive applications requiring the highest reliability under particularly difficult conditions (heat, vibration, mechanical and cyclic strength).
SCHURTER is certified according to IATF 16949.