Current/voltage non-linear resistor and sintered body therefor
US6627100B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2001 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | May 6, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C17/06546
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A current/voltage non-linear resistor comprises a sintered body having a main component of ZnO, an electrode applied to a surface of the sintered body and an insulation material applied to another surface of the sintered body. The main component containing, as auxiliary components, Bi, Co, Mn, Sb, Ni and Al, and the contents of the auxiliary components are respectively expressed as Bi2O3, Co2O3, MnO, Sb2O3, NiO and Al3+, of Bi2O3: 0.3 to 2 mol %, Co2O3: 0.3 to 1.5 mol %, MnO: 0.4 to 6 mol %, Sb2O3: 0.8 to 7 mol %, NiO: 0.5 to 5 mol % and Al3+: 0.001 to 0.02 mol %; a Bi2O3 crystalline phase in the sintered body including an &agr;-Bi2O3 phase representing at least 80% of the total Bi2O3 phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.