PPTC OVER-CURRENT PROTECTION DEVICE
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United States of America Patent
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app pub date -
Feb 20, 2014
filing date -
Feb 20, 2014
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Abstract
A PPTC over-current protection device includes: a first PPTC component that has a first metal foil layer and a first PTC element including a first polymer matrix, the first metal foil layer being bonded to the first polymer matrix; and a second PPTC component that has a second metal foil layer and a second PTC element including a second polymer matrix. The second metal foil layer is bonded to the second polymer matrix. The first and second PPTC components are stacked one above the other and are bonded to each other to form a stack with the first and second metal foil layers being bonded to each other or with the first and second polymer matrices being bonded to each other.
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