Abstract: An electrical connector for electrical apparatus including a built-in capacitor for suppressing the generation of or preventing high frequency energy generated internally of the apparatus from being radiated externally of the apparatus through the power supply wires. The connector includes a fixed insulating housing adapted to be mounted on the conductive case of the apparatus and an electrically conductive member extending therethrough having one end exposed to the outside of the fixed housing for detachable connection to a movable connector and the other end extending through the case for connection to the electrical apparatus on the inside. The fixed housing has on the side adjacent to the apparatus case a cavity with mid portions of the conductive member extending along one wall thereof.