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Varistor compositions and multilayer varistor
A varistor composition free of Sb comprising: (a) ZnO; (b) B—Bi—Zn—Pr glass, or B—Bi—Zn—La glass, or a mixture thereof; (c) a cobalt compound, a chromium compound, a nickel compound, a manganese compound, or mixtures thereof; (d) SnO2; and (e) an aluminum compound, a silver compound, or a mixture thereof. By adjusting the ratio between the components, the varistor composition may be made into a multilayer varistor with inner electrodes having a low concentration of noble metals at a sintering temperature less than 1200° C. The multilayer varistor made from the varistor composition has good maximum surge current, good ESD withstand ability, and low fabrication cost.
Varistor compositions and multilayer varistor
A varistor composition free of Sb comprising: (a) ZnO; (b) B—Bi—Zn—Pr glass, or B—Bi—Zn—La glass, or a mixture thereof; (c) a cobalt compound, a chromium compound, a nickel compound, a manganese compound, or mixtures thereof; (d) SnO2; and (e) an aluminum compound, a silver compound, or a mixture thereof. By adjusting the ratio between the components, the varistor composition may be made into a multilayer varistor with inner electrodes having a low concentration of noble metals at a sintering temperature less than 1200° C. The multilayer varistor made from the varistor composition has good maximum surge current, good ESD withstand ability, and low fabrication cost.
Varistor compositions and multilayer varistor
LIN YONG-MING (author) / SHIH YAN-LIANG (author) / TU TUI-TING (author)
2019-03-19
Patent
Electronic Resource
English
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