CURRENT/VOLTAGE NONLINEAR RESISTOR

Title:

CURRENT/VOLTAGE NONLINEAR RESISTOR

Document Type and Number:

Japanese Patent JP2008172034

Kind Code:

A

Abstract:

To provide a voltage nonlinear resistor which can have an excellent current/voltage nonlinear characteristic, a life characteristic and surge energy resistance, can improve thermal stability at high temperatures, and can contribute to the miniaturization of an overvoltage protection device.

A sintered compact 1 contains ZnO not smaller than 95 mol% as its main component. The compact also contains, as its sub components, 0.3-1 mol% of Bi2O3, 0.5-2.5 mol% of Sb2O3, 0.3-1.5 mol% of Co2O3, 0.2-2 mol% of MnO, and 0.5-3 mol% of NiO when Bi, Sb, Co, Mn and Ni are converted to Bi2O3, Sb2O3, Co2O3, MnO and NiO, respectively. A ratio of NiO to MnO is 2.0 to 6.0, and a ratio of Sb2O3 to MnO is 1.5 to 4.0.

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Inventors:

KASUGA YASUNOBU
ANDO HIDEYASU
IMAI TOSHIYA

Application Number:

JP2007003938A

Publication Date:

July 24, 2008

Filing Date:

January 11, 2007

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