Patent ID: 11862405
Assignee: TDK CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A high-voltage feed-through capacitor comprising:
an element body including a first main surface and a second main surface opposing each other and being formed with a through hole to be open at the first main surface and the second main surface;
a first electrode on the first main surface;
a second electrode on the second main surface;
a through-conductor having an outer diameter smaller than an inner diameter of the through hole and being electrically connected to the first electrode, the through-conductor including a first portion located inside the through hole and a second portion protruding from the second main surface;
a metal fitting being electrically connected to the second electrode;
a case surrounding the element body and being electrically insulating;
a cover surrounding the second portion and being electrically insulating;
a first resin contained in the case and coating the element body; and
a second resin contained in the cover and being located in a space between an inner surface of the element body defining the through hole and the first portion,
wherein the second resin has an electrical resistivity less than an electrical resistivity of the first resin.