Thick film varistor
US4333861A · kind A · utility
18Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1979 |
| Grant date | Jun 8, 1982 |
| Priority date | — |
| Expiry date | Apr 5, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C7/108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A thick film varistor comprising a thick film consisting essentially of 20 to 85 weight percent of tin oxide having an additive such as antimony oxide, and 15 to 80 weight percent of a glass frit such as a zinc barium borate glass. This thick film varistor is advantageous for its high n value (i.e. high voltage dependence of resistivity) and its low varistor voltage (i.e. voltage above which its resistivity abruptly decreases).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.