Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Analysis of Ceramic Varistor

  • M.Suzuki (Department of Electrical Engineering, Akita University, Japan) ;
  • N.Yoshimura (Department of Electrical Engineering, Akita University, Japan) ;
  • S.Shibata (TDK Co, Ceramic Div., Akita Prof.) ;
  • A.Itoh (Department of Electrical Engineering Fukushima National College of Technology)
  • Published : 1990.10.01

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Abstract

The frequence characteristic of capacity and dissipation factor of ceramic varistor has been studied in the range from 10 KHz to 1 MHz. From the results, the equivalent circuit was determined. The equivalent circuit is consisted of three blocks, such as grain boundary layer, depletion layer and conduction layer. The resistance and capacitance of each lock are 10 K$\Omega$ and 65nF, 15$\Omega$ and 6nF, 0.5$\Omega$ respectively.

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