The K30U500 is a resettable fuse manufactured by Kailong and compliant with ROHS. It features a voltage rating of 30V, a maximum current rating of 5A, a current limit rating of 40A, a power rating of 3W, an interrupting rating of 10A, an operating temperature range of -40? to +85?, a hot-resistance of 0.01O, a reaction time of 14.5s, a cold-resistance of 0.045O, and a lead pitch of 10.2mm.