Abstract: An electrical connector is provided which has both transient suppression and filtering means for protecting electronic equipment from energy generated by RFI, EMI, EMP and ESD. The connector is comprised of a conductive housing member having an axially extending passageway therethrough, and a circuit assembly disposed therein, the circuit assembly including a transient suppression subassembly and a pi-network filter assembly in electrical engagement with a plurality of electrical terminals. The transient suppression subassembly is comprised of a dielectric substrate having conductive path disposed thereon, a plurality of apertures extending therethrough for receiving electrical terminal members and preferably a bidirectional diode electrically connected to the terminal members and conductive path means and grounding means. The filter assembly, comprised of capacitor and inductor members is electrically engageable with the terminal members and ground.