Patent ID: 8525634
Filing Date: 2013-09-03
Classification: H01C

Abstract:
1. A chip varistor comprising: a varistor section comprised of a sintered body containing ZnO as a major component and configured to exhibit the nonlinear voltage-current characteristics; a plurality of electroconductive sections comprised of sintered bodies containing ZnO as a major component and arranged with the varistor section in between, each electroconductive section having a first principal surface connected to the varistor section and a second principal surface opposed to the first principal surface; and a plurality of terminal electrodes connected to the plurality of electroconductive sections, wherein each of said terminal electrodes has a first electrode portion connected to the second principal surface, and a second electrode portion connected to the first electrode portion, wherein the varistor section includes a first region where at least one element selected from the group consisting of alkali metals, Ag, and Cu exists, and a second region extending between the first principal surfaces of the electroconductive sections and containing no element selected from the group consisting of alkali metals, Ag, and Cu, wherein each of said electroconductive sections includes a first region where at least one element selected from the group consisting of alkali metals, Ag, and Cu exists, and a second region extending between the first principal surface and the second principal surface and containing no element selected from the group consisting of alkali metals, Ag, and Cu, and wherein the first electrode portion is connected to the second region in the electroconductive section.