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Circuit protection device having thermally coupled MOV overvoltage element and PPTC overcurrent element
Circuit protection device having thermally coupled MOV overvoltage element and PPTC overcurrent element
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机译:具有MOV过电压元件和PPTC过电流元件热耦合的电路保护装置
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摘要
In a composite electrical circuit protection device, thermal coupling between a planar PPTC element and a planar MOV element is controlled by insertion of a thermal mass material for regulating heat transfer from the MOV element to the PPTC element, such that a PPTC resistor hot zone forms consistently away from the planar major foil electrode confronting the MOV thereby regulating heat transfer from the MOV to the PPTC resistor.
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