Fusible element for electric fuses and electric fuse including the element
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United States of America Patent
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Jan 4, 1983
Issued Date -
N/A
app pub date -
Aug 12, 1980
filing date -
May 16, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fusible element for electric fuses including a core or layer of copper, an outer layer of silver plating, and an M-effect overlay on the silver layer of a low fusing point metal, e.g. tin, capable of severing the current path through the plating of silver and the core of copper by a metal diffusion process. The M-effect overlay is arranged in spaced relation in regard to the point of the fusible element where the highest temperature prevails to maximize the temperature difference, or temperature gradient, between the M-effect overlay and the hottest point of the fusible element when the latter is carrying current.
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