The MF-PSMF050X-2 is a PTC resettable fuse from Bourns. This device has a maximum current rating of 40. This resettable fuse has a minimum operating temperature of -40 °C and a maximum of 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 2.3(Max) mm long, 0.85(Max) mm tall and 1.5(Max) mm deep.