Thermally protected metal oxide varistor
AssigneeDongguan Littelfuse Electronics Company Limited
InventorsHailang Tang, Dongjian Song, Charles Hu
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Abstract
A metal oxide varistor (MOV) includes an MOV body, a first electrode, a second electrode, and a thermal cut-off insulation shell. The MOV body is a crystalline microstructure with zinc oxide mixed with one or more other metal oxides. The first electrode is adjacent one side of the MOV body and is connected to a first radial lead. The second electrode is adjacent a second side of the MOV body and is connected to a second radial lead having a curved portion. The thermal cut-off insulation shell is adjacent the second electrode and has a protrusion, with the curved portion of the second radial lead being adjacent the protrusion.
Claims9
A metal oxide varistor comprising:
- a metal oxide varistor body comprising a crystalline microstructure featuring zinc oxide mixed with one or more other metal oxides;
- a first electrode disposed adjacent a first side of the metal oxide varistor body, wherein the first electrode is coupled to a first radial lead;
- a second electrode disposed adjacent a second side of the metal oxide varistor body, wherein the second electrode is coupled to a second radial lead, wherein the second radial lead comprises a circular portion;
- and
- a thermal cut-off insulation shell disposed adjacent the second electrode, the thermal cut-off insulation shell comprising a cylindrical protrusion, wherein the circular portion fits around the cylindrical protrusion.
Dependencies are inferred from the claim text.