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Sintering Effect on Clamping Characteristics and Pulse Aging Behavior of ESD-Sensitive V2O5/Mn3O4/Nb2O5 Codoped Zinc Oxide Varistors
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 Title & Authors
Sintering Effect on Clamping Characteristics and Pulse Aging Behavior of ESD-Sensitive V2O5/Mn3O4/Nb2O5 Codoped Zinc Oxide Varistors
Nahm, Choon-Woo;
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 Abstract
V2O5/Mn3O4/Nb2O5 codoped zinc oxide varistor ceramics were sintered at a temperature range as low as 875~950℃. The voltage clamping characteristics of V2O5/Mn3O4/Nb2O5 codoped zinc oxide varistor ceramics were investigated at a pulse current range of 1~50 A. The sintering temperature had a significant effect on clamp voltage ratio, which exhibits surge protection capabilities. The varistor ceramics sintered at 875℃ exhibited the best clamping characteristics, in which the clamp voltage ratio was 2.69 at a pulse current of 50 A. The varistor ceramics sintered at 900℃ exhibited the highest electrical stability, where
 Keywords
Zinc oxide;Sintering;Clamping characteristics; based varistors;
 Language
English
 Cited by
1.
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