High current varistor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 26, 2001
Grant Date -
N/A
app pub date -
Oct 27, 2000
filing date -
Oct 27, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A metal oxide varistor comprises a hollow ceramic body having an opening, a first electrode within the body and having a portion extending through the opening, and a second electrode disposed on the exterior surface of the body. Voltage applied to the electrodes above the device clamping voltage causes the ceramic body to conduct. The geometry of the body, which is optimally a sphere, greatly increases surface area between the electrodes and the ceramic body, and consequently increases the device's current carrying capacity.
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