Bourns MF-FSHT PTC Resettable Fuses offer a 12V voltage rating, up to 40A Imax current rating, and 0603 footprint size with a low profile design. MF-FSHT fuses feature surface mount packaging for automated assembly, a maximum operating temperature rating of +125°C, and a low thermal derating factor. The Bourn innovative freeXpansion™ design it utilized increased the performance of these fuses. Bourns MF-FSHT PTC Resettable Fuses are ideal for industrial and demanding applications requiring high working temperatures.