An automatically resetting fuse like this 0ZCM0020FF2G PTC resettable fuse from Bel Fuse is ideal for quickly restoring protected equipment into operation after a fuse burns out. This device has a maximum current rating of 40. This resettable fuse has an operating temperature range of -40 °C to 85 °C. It has 2 terminals. Mount your resettable fuse on a printed circuit board using surface mount technology to produce the most effective results. This product is 1.8(Max) mm long, 0.75(Max) mm tall and 1(Max) mm deep.