Title:
OXIDE VOLTAGE NONLINEAR RESISTOR
Document Type and Number:
Japanese Patent JPS5812306
Kind Code:
A
Abstract:
Disclosed is a metal oxide varistor which comprises; a sintered body containing (a) ZnO as a principal component, and (b), as auxiliary components, Bi, Co and Mn in amounts of 0.05 DIFFERENCE 2 mole %, 0.05 DIFFERENCE 2 mole % and 0.05 DIFFERENCE 2 mole %, when calculated in terms of Bi2O3, Co2O3 and MnO2, respectively, and at least one selected from Al, In and Ga in amounts of 1x10-4 DIFFERENCE 3x10-2 mole %, when calculated in terms of Al2O3, In2O3 and Ga2O3, respectively; said sintered material having been reheated at a temperature of 650 DEG DIFFERENCE 900 DEG C. after sintering; and a non-diffusible electrode provided on said sintered body. The metal oxide varistor has excellent pulse response and volt-ampere non-linearity even with respect to a pulse having a short rise time of less than a microsecond.
Inventors:
IMAI MOTOMASA
TAKAHASHI TAKASHI
FURUKAWA OSAMU
KANAI HIDEYUKI
TAKAHASHI TAKASHI
FURUKAWA OSAMU
KANAI HIDEYUKI
Application Number:
JP11002881A
Publication Date:
January 24, 1983
Filing Date:
July 16, 1981
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
H01C7/10; C04B35/453; H01C7/112; (IPC1-7): C04B35/00; H01C7/10
Domestic Patent References:
| JPS5321509A | 1978-02-28 | |||
| JPS5676505A | 1981-06-24 | |||
| JPS5322278A | ||||
| JPS56142601A | 1981-11-07 |
Attorney, Agent or Firm:
Noriyuki Noriyuki