Metal oxide-polyaniline polymer matrix varistor
AssigneeLittelfuse, Inc.
InventorsOluwaseun Kehinde Oyewole, Marco Doms
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Abstract
A method of manufacturing a metal oxide varistor (MOV), the method including placing a quantity of a MOV composition in a pressing die, the MOV composition including metal oxide granules mixed with a polyaniline-polymer, performing a pressing operation including operating the pressing die to compress the MOV composition into a solid MOV chip, and applying first and second electrodes to opposing first and second sides of the MOV chip, wherein the pressing operation is performed at a temperature in a range of 15 degrees Celsius to 200 degrees Celsius.
Claims9
A metal oxide varistor (MOV) comprising:
- a MOV chip;
- a first electrode disposed on a first side of the MOV chip;
- and
- a second electrode disposed on a second side of the MOV chip;
- electrically conductive first and second leads connected to the first electrode and the second electrode, respectively;
- wherein the MOV chip is formed of a MOV composition comprising metal oxide granules embedded in a polyaniline-polymer matrix, wherein the metal oxide granules are zinc oxide granules and further comprising a dielectric polymer coating covering the MOV chip, the first and second electrodes, and portions of the first and second leads.
A metal oxide varistor (MOV) composition comprising metal oxide granules mixed with a polyaniline-polymer, wherein the metal oxide granules are zinc oxide granules.
A method of manufacturing a metal oxide varistor (MOV),
- the method comprising:
- placing a quantity of a MOV composition in a pressing die, the MOV composition comprising metal oxide granules mixed with a polyaniline-polymer;
- performing a pressing operation including operating the pressing die to compress the MOV composition into a solid MOV chip;
- and
- applying first and second electrodes to opposing first and second sides of the MOV chip, wherein the metal oxide granules are zinc oxide granules.
Dependencies are inferred from the claim text.