Voltage non-linear resistor and method of producing the same

Details Voltage non-linear resistor and method of producing the same Voltage non-linear resistor and method of producing the same

1989-06-06

1990-06-12

Reynolds, Bruce A.

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

338 21, 29620, 264 61, 252519, H01C 710

Patent

active

049336592

ABSTRACT:
A voltage non-linear resistor having lightning discharge current withstanding capability, switching surge current withstanding capability, and voltage non-linear index .alpha., including a resistor element body consisting essentially of zinc oxide, and a side highly resistive layer composed of a zinc silicate phase consisting essentially of Zn.sub.2 SiO.sub.4 and a spinel phase consisting essentially of Zn.sub.7 Sb.sub.2 O.sub.12 arranged on a side surface of the resistor element body, can be attained, having a porosity of the resistor element body of 2% or less, zinc silicate particles existing continuously in the side highly resistive layer, and a porosity of 10% or less in a region of the side highly resistive layer within 30 .mu.m or less from the resistor element body. A method of producing the voltage non-linear resistor is also provided.

REFERENCES:
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patent: 4719064 (1988-01-01), Nakata et al.
patent: 4724416 (1988-02-01), Nakata et al.
patent: 4730179 (1988-03-01), Nakata et al.

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