Patent attributes
A feedthrough device includes a conductive ferrule having an outer peripheral surface defining the outermost boundary of the feedthrough device, an insulator, a lead wire electrically isolated from the ferrule extending through the insulator, a filter capacitor adjacent the insulator through which the lead wire extends in conductive relation therewith, and a ground wire coupled to the ferrule and to the insulator within the outermost boundary of the feedthrough device. The ferrule has an inner peripheral surface defining an opening therethrough and each of the insulator and the filter capacitor has an outer peripheral surface proximate the inner peripheral surface, a counterbore in the outer peripheral surface of each of the insulator and filter capacitor, an end of the ground wire being received in the counterbore and brazed to the ferrule and insulator. Alternatively, an end of the ground wire is welded to the inner peripheral surface of the ferrule.
