MF-RHT450-2 is a high-temperature PTC resettable fuse designed for automotive and general electronic equipment protection. It features a maximum voltage rating of 16 V, maximum current of 100 A, and a hold current of 4.5 A at 23°C with a trip current of 7.8 A. The device exhibits a minimum resistance of 0.022 O and a post-trip resistance of 0.054 O, with a maximum time to trip of 3.0 seconds at 23°C. Operating over an extended temperature range from -40°C to +125°C with low thermal derating, the MF-RHT450-2 maintains higher hold currents at elevated temperatures and is AEC-Q200 compliant for automotive applications. This resettable fuse is ideal for protecting engine control modules, overcurrent surge protection in high-temperature environments, and general electronic equipment requiring reliable fault protection.