N Type Connectors & Adapters Johnson / Cinch Connectivity Solutions N Type Connectors and Adapters offer a 50Ω to 75Ω impedance range and a 0 to 18GHz frequency range. These connectors feature threaded coupling mechanisms and are fully interchangeable with Type N connectors made to the MIL-C-39012 specifications. Type N adapters are available in jack-to-jack, jack-to-bulkhead jack, and plug-to-plug jack formats. Johnson / Cinch Connectivity Solutions N Connectors and Adapters are ideal for antennas, cellular, instrumentation, and broadcast applications.