| 摘要 |
PROBLEM TO BE SOLVED: To provide a fusible alloy for a thermal fuse, which does not contain lead, is environmentally good and has practicality as well, and a thermal fuse using the alloy. SOLUTION: The fusible alloy for the fuse which is composed of an alloy composition containing 25 to 39wt% Sn and 0.1 to 5wt% Bi and consisting of the balance In without using Pb and whose melting temperature is 120°C to 140°C is constituted. The fusible alloy is appropriate for use as a protection for a power transformer which is a main component of a power-supply circuit. The fusible alloy is also is usable for applications other than the power transformer. COPYRIGHT: (C)2005,JPO&NCIPI
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