This 0603L004YR PTC resettable fuse from Littelfuse is ideal for low current and low voltage ratings. 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.