Fuse protects an electrical circuit from high currents above its rating. Or fuse is a device that prevents electrical fire accidents such as heating or ignition. It is embedded in an electric circuit and normally behaves as a conductor. However, if a current exceeding the rating flows to the electric circuit due to some abnormality, the alloy parts built in are melted (blown) by Joule heat to protect the circuit by opening the circuit. We provide a range of products for Littelfuse, which are the top manufacturers of circuit protection components.