PTC device
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United States of America Patent
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Sep 22, 2015
Grant Date -
Jan 29, 2015
app pub date -
Jul 27, 2012
filing date -
Jul 29, 2011
priority date (Note) -
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Abstract
The present invention provides a PTC device having a laminate which includes a PTC component having a laminar PTC element defined by main surfaces which are facing each other, laminar electrodes extending on the main surfaces, and a first insulation layer, the PTC component, and a second insulation layer laminated in this listed order. The laminate has a first end and a second end, and a first side electrode and a second side electrode are disposed on the first end and the second end, respectively; one of laminar electrodes of the PTC component extends while being separated from the first side electrode and the second side electrode; the other is separated from the first end, and extends to the second end and is electrically connected to the second side electrode. At least the first side electrode extends at the first end along an entirety of a thickness direction of the laminate and further extends on a first edge portion of one of the insulation layers; and the first edge portion has a through-hole which reaches the one laminar electrode. The through-hole has an electrically conductive element which electrically connects the one laminar electrode and the first side.
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