The JK-nSMD400L resettable fuse manufactured by Jinrui Electronic Materials is a very useful electrical component designed to provide quality overload protection to a variety of electronic circuits. This particular fuse can handle up to 6V of current at 4A and 50A at 1W, and is designed to operate within a temperature range of -40? to +85?. Additionally, it has a maximum peak current of 8A and has extremely low contact resistance of 0.004O in 2s and 0.014O in 1206, ensuring reliable and quick operation in the case of an overload. Finally, this resettable fuse meets ROHS standards for environmental friendliness and safety.