MF-R025-AP-99 is a radial-leaded PTC resettable fuse designed for low-voltage power supply protection in computers, peripherals, and general electronics. It features a maximum voltage rating of 60 V and maximum current of 40 A, with a hold current (Ihold) of 0.25 A and trip current (Itrip) of 1.00 A at 23°C. The device exhibits an initial resistance of 1.95 O and a post-trip resistance of 3.00 O (maximum at 23°C), with a maximum time to trip of 2.5 seconds and typical tripped power dissipation of 0.45 W. Constructed with flame-retardant epoxy polymer insulation meeting UL 94V-0 requirements, the fuse is RoHS compliant and halogen-free, making it suitable for applications requiring automatic circuit protection with self-recovery capability.