The present disclosure provides a feedthrough device comprising: a feedthrough substrate having first and second surfaces, the feedthrough substrate being a non-conductor； at least one first feedthrough conductor having a terminal connected to a terminal that is exposed to the first surface of the first feedthrough substrate, the first feedthrough conductor having a body that is not exposed to the outside of the feedthrough substrate； and at least one second feedthrough conductor having a terminal connected to a terminal that is exposed to the second surface of the feedthrough substrate, the second feedthrough conductor having a body that is not exposed to the outside of the feedthrough substrate, and each second feedthrough conductor having one-to-one correspondence with each first feedthrough conductor and constituting a pair therewith, wherein the body of each first feedthrough conductor and the body of each second feedthrough conductor, which corresponds thereto, are arranged to have capacitive coupling with each other.
