Coaxial Adapters

A Coaxial adapter is a single-piece component allowing the connection of two different pieces of equipment that cannot be joined directly

What does a Coaxial Adapter do?

Coaxial adapters provide a convenient method of connecting RF equipment together.


  • Laboratory

  • Test and measurement

  • Communications

  • Base stations

  • GPS

  • LAN

  • Antennas


There are two main types of RF coaxial adapters;

In series:

A two-port Interconnection device that provides a convenient method of converting from one gender to another in the same series. Is also known as an inline coupler or inline barrel adapter. An In series coaxial adapter is also a handy way to join two lengths of cable together to extend the run within the same connector series.

Between series:

A two-port interconnection device allowing the conversion between two different types of RF coaxial cable connector types. For example BNC to N, SMA to TNC.

The most important attributes that must be considered are;

  • Male to Male

  • Female to Female

  • Male to Female

Series (connector group)

  • SMA, BNC, TNC, N-type

Body orientation:

  • Straight

  • Right angle

  • Tee

  • Angled

  • Vertical


  • 50 Ω

  • 75 Ω

  • 100 Ω

  • 500 Ω

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Description Price Adapter Type Adapter Type A Adapter Type B Gender A Gender B Impedance Body Orientation Operating Frequency Polarity Contact Plating Length Body Plating Cable Type Contact Material
RS Stock No. 399-7749
Mfr. Part No.NBB75FI
BNC Socket to BNC Socket BNC BNC Female Female 75Ω Straight 3GHz - Gold 34mm White Bronze - Brass
RS Stock No. 399-7755
Mfr. Part No.NBB75FG
BNC Socket to BNC Socket BNC BNC Female Female 75Ω Straight - Normal Gold 34mm Gold - -