| 摘要 |
FIELD: physics.SUBSTANCE: invention relates to positive temperature coefficient (PTC) devices, having a PTC element, particularly a polymer PTC element and an electrical device having said PTC device. The PTC device (10) has a multilayer base (14) which operates as a heat-conducting medium and a polymer PTC element (12) situated on the base, wherein the polymer PTC element is situated on one surface (15) of the multilayer base (in a thermally coupled state) and the polymer PTC element and the multilayer base are brazed into a resin such that the other surface (15') of the multilayer base remains outside.EFFECT: fast detection and prevention of heating up of the substrate to an extremely high temperature.11 cl, 7 dwg |
