Patent ID: 7417527
Filing Date: 2008-08-26
Classification: H01C

Abstract:
1. A PTC element comprising: an element body in which an electroconductive filler is dispersed in a crystalline polymer; a pair of lead terminals compressed with the element body in between; and a protecting film covering a portion of the element body not compressed against the pair of lead terminals; wherein each of the pair of lead terminals has an overlap region overlapping with the element body, and a nonoverlap region not overlapping with the element body, wherein an anchor projection embedded in the element body is formed in the overlap region of each of the pair of lead terminals, wherein a peel prevention region for preventing peeling of the protecting film is formed in a region adjoining the element body in the nonoverlap region, and wherein the anchor projection is formed as crushed, in a region except for at least the peel prevention region in the nonoverlap region.