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The N connector (in full, Type N connector) is a threaded, weatherproof, medium-size RF connector used to join coaxial cables. It was one of the first connectors capable of carrying microwave-frequency signals, and was invented in the 1940s by Paul Neill of Bell Labs, after whom the connector is named.


Electrical DataDetail
Impedance50 ohms
Frequency range0 to 11 GHz
Working Voltage170 Vrms max.
Dielectric withstanding voltage
  • RG316: 1000 Volts rms min.
  • RG58: 1500 Volts rms min.
  • RG142, 400, 223: 1500 Volts rms min.
  • Straight connector :1.3 max
  • R/A connector: 1.5 max.


Mechanical DataDetail
Force to engageThe torque required to engage and disengage shall not exceed 6 inch-lbs
Mating5/8-24 threaded coupling
Coupling nut retention force101.2 lbs min.
Connector durablity500 matings
Cable retention force
  • RG316: 12.1 lbs min.
  • RG58: 28.7 lbs min.
  • RG142, 400, 223: 57.7 lbs min.