| 摘要 |
PROBLEM TO BE SOLVED: To provide an alloy-type thermal-fuse, that can function under temperatures which are within the range of 125 deg.C-135 deg.C, can satisfy requirements of environmental preservation, can make the fuse-element diameter fine to substantially approximately to 300μmϕ, and can cause it to function accurately by satisfactorily suppressing self-heating. SOLUTION: In a thermal-fuse which uses an alloy which is soluble at a low-melting point as a fuse element, the alloy has an alloy composition of 33-43 weight % Sn, 0.5-10 weight % In and with the remainder being Bi.
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