Fusible alloy for thermal fuse, wire for thermal fuse and thermal fuse

摘要

The invention provides a fusible alloy for a temperature fuse which is lead-free, cheap and has higher operating temperature (such as 180 DEG C-200 DEG C), wires for a temperature fuse, and a temperature fuse. The temperature fuse includes the fusible alloy. The fusible alloy includes bismuth, copper and other parts. The other parts include tin and inevitable impurities. The content of the bismuth is more than 5 mass% and less than 30 mass%, and the content of the copper is more than 0.1 mass% and less than 5 mass%.