MF-R020-2 is a PTC resettable fuse from Bourns' MF-R Series designed for automatic circuit protection in low-voltage power supplies. It features a maximum voltage rating of 60 V and maximum current rating of 40 A, with a hold current (Ihold) of 0.20 A and trip current (Itrip) of 0.40 A at 23°C. The device has an initial resistance of 2.84 O and a post-trip resistance of 4.40 O maximum, with a maximum time to trip of 2.2 seconds and typical tripped power dissipation of 0.40 W. The component is housed in a radial leaded package with cured, flame-retardant epoxy polymer insulation meeting UL 94V-0 requirements, and is RoHS compliant and halogen-free. This device is ideal for protecting computers, peripherals, and general electronics applications where automatic resettable protection is required.