Medical devices provide connector enclosures that have a metallic portion that has a metallic weld to a metallic portion of a can that houses medical circuitry. The connector enclosure may have a metallic base that receives the metallic weld to the can. The can may have an open top that is capped by the metallic base of the connector enclosure upon mounting the connector enclosure to the can, and the metallic weld to the base of the connector enclosure may create a hermetic seal for the can. The metallic base may provide feedthrough pin passageways where feedthrough pins are present within the connector enclosure and are exposed beyond the metallic base for connection to medical circuitry within the can. The connector enclosure may also include additional metal features where an enclosure for the lead connectors may have walls that are entirely metal.
