Patent ID: 6346872
Filing Date: 2002-02-12
Classification: H01C,Y10T

Abstract:
A varistor capable of withstanding at least one high-power current pulse of defined amplitude, form and duration in an electric field of predetermined magnitude, the varistor comprising:a cylindrical resistance body made from a material which is based on metal oxide; and two electrodes each arranged on one of two mutually parallel end faces of the cylindrical resistance body; wherein for each of the two electrodes, an outer circumference of the electrode is between approximately 10 microns and approximately 500 microns distant from a boundary defined as an intersection of a plane defined by the end face on which the electrode is arranged, with a surface defined by a circumferential outer surface of the cylindrical resistance body; and wherein the resistance body has a first conical bevel extending from the electrode on one of the first and second end faces to the circumferential outer surface of the resistance body.