| 摘要 |
The invention provides a thermal fuse and a fuse element of the low-melting fusible alloy type in which the fuse element has an alloy composition of 37 to 43% In, 10 to 18% Sn, and the balance Bi. As a result, the operating temperature is in the range of 65 to 75 DEG C, requests for environment conservation can be satisfied, the diameter of the fuse element can be made very thin or reduced to about 300 mu m phi , self-heating can be suppressed, and the thermal stability can be satisfactorily guaranteed. <IMAGE>
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