发明名称 |
PTC circuit protection device comprising mechanical stress riser |
摘要 |
A circuit protection device in which a PTC element made from a PTC composition includes or has at a boundary thereof a mechanical stress riser. The device will be tripped by, and provide reversible protection against, a first set of fault conditions, and will also provide protection at least one time against a second, more severe, set of fault conditions which cause physical disruption of the device and which cause the device to have a substantially infinite resistance. Devices of the invention are useful in protecting against relatively high voltages.
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申请公布号 |
US5303115(A) |
申请公布日期 |
1994.04.12 |
申请号 |
US19920828544 |
申请日期 |
1992.01.27 |
申请人 |
RAYCHEM CORPORATION |
发明人 |
NAYAR, DEEPAK;BEADLING, WILLIAM C.;CHUNG, THANH U.;PINEDA, MARTIN |
分类号 |
H02H3/02;H02H9/02;(IPC1-7):H02H5/04 |
主分类号 |
H02H3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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