FUSE ELEMENT FOR PROTECTIVE ELEMENT AND CIRCUIT PROTECTION ELEMENT UTILIZING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a fuse element for protective element composed of a composite metal material which can enhance production efficiency while reducing the size and thickness of bonding components, e.g., the fuse element of a protective element or a substrate including a pattern electrode, and to provide a circuit protection element of an electric/electronic apparatus utilizing the same.SOLUTION: A fuse element 25 is produced by laminating at least a single layer of high melting point base material 21 composed of a fusible metal having a first melting point not fusible at the reflow temperature, and at least a single layer of low melting point coating material 22 composed of a fusible metal having a second melting point fusible at the reflow temperature. A fuse element for protective element is formed by bonding the fuse element 25 onto an insulation substrate 23 provided with a pattern electrode 24.