| 摘要 |
In a fuse link where n(n=S) interrupting portions (22-1, 22-2, 22-3,..., 22-(n-1), 22-n) are constituted by arranging P interrupting portion narrow strips constricted into mortar type in parallel by means of m elliptical holes (Q1, Q2, Q3,..., Qm-1, Qm, (m=P-1)) which are arranged in parallel and contiguously to each other and semielliptical portions (cut portions) on the opposite sides thereof, n sets of the interrupting portions (22-1, 22-2, 22-3,..., 22-(n-1), 22-n) are arranged in series through coupling strips (heat dissipation strips) (21-1, 21-2, 21-3,..., 21-(n-1), 21-n) having a length of 2.5 mm or less measured in the series direction and a thickness of tR=80-150 μm. The interrupting portions (22-1, 22-2, 22-3,..., 22-(n-1), 22-n) have a thickness of tH=10-60 μm. With such an arrangement, a fuse link which can be made compact and can be reduced in the value of I2t and the cost, and a fuse employing that fuse link can be provided.
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