Voltage-dependent resistor and method of making the same

Details Voltage-dependent resistor and method of making the same Voltage-dependent resistor and method of making the same

H - Electricity

01

L

356/114

H01L 29/66 (2006.01) H01C 7/112 (2006.01)

Patent

CA 1144658

ABSTRACT OF THE DISCLOSURE There are provided improved voltage-dependent resistors of the bulk-type comprising a sintered body consisting essen- tially of, as a main constituent, zinc oxide (ZnO) and, as additives, 0.1 to 3.0 mole percent of bismuth oxide (Bi2O3), 0.1 to 3.0 mole percent of cobalt oxide (Co2O3), 0.1 to 3.0 mole percent of manganese oxide (MnO2), 0.1 to 3.0 mole percent of antimony oxide (Sb2O3), 0.05 to 1.5 mole percent of chromium oxide (Cr2O3), 0.005 to 0.3 mole percent of boron oxide (B2O3), at least one member selected from the group consisting of 0.005 to 0.025 mole percent of gallium oxide (Ga2O3), and at least one member selected from the group consisting of 0.1 to 3.0 mole percent of nickel oxide (NiO) and 0.1 to 10.0 mole percent of silicon oxide (SiO2) with electrodes applies to opposite surfaces of said sintered body. There is also provided a process for the production of said resistors. The resistors have non-omic properties and are particularly useful for surge absorbers and lightening arrestors.

365566

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