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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Long Duration Withstand Current Characteristics of ZnO Varistors

ZnO 바리스터 소자의 장시간 방전내량 특성

  • Published : 2005.07.07
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Abstract

This paper describes the long duration withstand current characteristics of ZnO varistors. Two ZnO varistors were manufactured with general ceramic production methods and three abroad varistors were also prepared to be compared. During long duration withstand test, sample 1 was destroyed at 4th impulse current but the rest passed test. Before and After the test, the residual voltage variation of varistors passed was below 5%. According to the test results, it is thought that the manufacturing process such as insulating coating, sintering condition and soldering method should be improved.

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