EP0189087A1
Expired / Lapsed
EP
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Voltage-dependent electric resistance (varistor)
Assignee: Siemens Bauelemente OHG
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Filing: 1986-01-13
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Granted: —
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Expires: 2006-01-13
Abstract
Abstract A voltage-dependent resistor or varistor is composed of a monolithic ceramic body made up of a plurality of layers of varistor material containing zinc oxide, alternating with layers of precious metal serving as coatings on the layers and which are alternatingly electrically connected to separate locations on the exterior surfaces of the body. The porosity of the layers of varistor material does not exceed 5%; the proportion of bismuth is at most 1 mol %; and the precious metal coatings include 50-80% by weight of palladium.
Inventors
- 👤 Günter Dipl.-Ing. Ott
- 👤 Franz Dr. Zettl
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 04:13
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/10; H01C7/1006; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06513; H01C17/06533; H01C17/06546; H01C7/102; H01C7/105; H01C7/108; H01C7/112
Claims Analysis
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References Cited (Backward Citations)
US4290041A
Cited
FR2523993A1
Cited
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