Patent ID: 6636403
Filing Date: 2003-10-21
Classification: H01C,H01H

Abstract:
A metal oxide varistor comprising:a varistor body; a plurality of electrodes on the varistor body, at least one electrode being a fused electrode; a plurality of leads; and a fuse connecting at least one of the plurality of leads to the fused electrode, the fuse including an insulator overlying part of the fused electrode, a link having a portion overlying the insulator and a portion electrically connected to the fused electrode, the link being of a material having a melting point at or below a thermal safety temperature threshold for the varistor, and a body of hot melt material in contact with the link, the hot melt material being an electrical insulator and having a melting point such that it melts and flows to create an insulating gap between the fused electrode and the material of the link when the link becomes molten.