What are BNC Connectors?

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Editorial Team - everything RF

Jan 12, 2019

The BNC connector was developed by Paul Neill from Bell Labs, and Carl Concelman from Amphenol, hence getting the name - "Bayonet Neill-Concelman" or BNC. This is a two-stud bayonet-style connector that has a twist and snap design with interlocking studs and slots. It is designed for quick mating, with the tactile 'snap' providing positive confirmation. BNC connectors can operate at frequencies up to 11 GHz.


BNC Connector Specifications:

  • Frequency Range: Up to 11 GHz (0 - 4 GHz with low reflection)
  • Impedance: 50 Ohms, 75 Ohms
  • Dielectric Withstanding Voltage: 1500 VRMS
  • Mating Cycles: 500
  • Temperature Rating: -65°C to +165°C
  • Diameter (Male): 14.0 mm / 0.570 in
  • Diameter (Female): 11.1 mm / 0.436 in 
  • Coupling Mechanism: Bayonet Coupling
  • Interface Standards: CECC 22121, IEC 61169-8, MIL-STD-348B

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