US 12,354,776 B2
Multilayer varistor
Yuji Yamagishi, Hokkaido (JP); Yoshiyuki Satou, Hokkaido (JP); and Naoki Mutou, Hokkaido (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Jan. 19, 2023, as Appl. No. 18/099,008.
Claims priority of application No. 2022-013570 (JP), filed on Jan. 31, 2022.
Prior Publication US 2023/0245805 A1, Aug. 3, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01C 7/108 (2006.01); H01C 1/14 (2006.01)
CPC H01C 7/108 (2013.01) [H01C 1/14 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A multilayer varistor comprising:
a sintered compact containing at least a Zn oxide and a Pr oxide;
at least one pair of internal electrodes provided inside the sintered compact, the at least one pair of internal electrodes containing, as a main component, at least one selected from the group consisting of Pd and Ag and containing, as a sub-component, an oxide of at least one element selected from the group consisting of Pr, Mn, Co, and Sb; and
at least one pair of external electrodes arranged to cover the sintered compact partially and electrically connected to the at least one pair of internal electrodes, respectively,
wherein Al is not contained in the at least one pair of internal electrodes.