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We introduced the varistor having more powerful surge suppression capability. This research focuses on the effect of sintering time on electrical properties and pulse current degradation of Pr/Co/Cr/Y/Mg co-doped zinc oxide varistors for surge suppression. With increasing sintering time, the breakdown field decreased from 2768 to 1680V/cm, and the nonlinear coefficient decreased from 57.7 to 29.3...
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