FUSE FOR PREVENTING OVER-HEATING AND OVER-CURRENT

The present invention includes: a first terminal which is arranged in one side of an insulating housing having an internal space; a second terminal which is arranged in the other side of the insulating housing; a first terminal connecting unit which is connected with the first terminal by being arranged in the insulating housing and is electrically clamped with a second terminal connecting unit which is in contact with the second terminal; a second terminal connecting unit which is connected with the second terminal by being arranged in the insulating housing and is electrically clamped with the first terminal connecting unit; and a connection blocking unit which is arranged in the insulating housing and is formed with a shape memory alloy to block the electrical connection of the first and second terminal connecting units. The connection blocking unit includes: a first arm and a second arm which are included to face and be separated mutually; and an arm connecting unit which connects the first arm and the second arm. The overheating and overcurrent preventing component: has a structure which is open toward the opposite side where the arm connecting unit is positioned; and blocks an electrical connection between the first terminal connecting unit and the second terminal connecting unit by pushing the first terminal connecting unit or the second terminal connecting unit while spreading at least one arm selected from the first arm and the second arm if a temperature becomes higher than a reference temperature.