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A Guide to RF Coaxial Connectors


If your premises utilises audiovisual equipment, telephony equipment or antennas, radiofrequency (RF) coaxial connectors are likely to be a key mainstay of your setup. These essential components play a vital role in delivering rapid signal transmission with minimal interference.

Although these connectors are quite specific by design, they are nevertheless used across a broad range of industry applications, with many businesses relying on this equipment to maintain the consistent performance of critical instrumentation. As businesses become ever more connected, the importance of choosing the right RF coaxial connectors will only grow.

Here, the team at Northern Connectors will introduce you to the basics of how RF coaxial connectors work, and what kind of benefits they can provide for your application.

What are RF coaxial connectors, and how do they work?

Coaxial connectors are the cylindrical bodies used in conjunction with coaxial (or coax) cables, a common type of electrical cable that is typically used to carry high-frequency, multi-megahertz electrical signals between devices.

Coax cables consist of an inner conducting material - usually copper - which is surrounded by a concentric conducting shield, with the two layers separated by a dielectric insulating material. These cables are designed in this way to deliver rapid signal transmission speeds of around 10Mbps, while preventing electromagnetic interference or signal loss that could interfere with the functionality.

The connectors are fastened to the ends of these coax cables and help to connect devices to each other or to external power supplies, while preventing external signals from entering the circuit through electromagnetic interference or capacitive pickup. For added stability, these connectors often incorporate secure fastening mechanisms, including bayonet locking or screw thread locking systems.

If you are looking to connect a device that transmits radiofrequency data, then you will need RF coaxial connectors. These specially-designed components have been optimised to provide the most consistent and reliable electrical resistance at the point of connection, in order to prevent signal reflection and power loss.

No matter what your application may be, you will be able to find an RF coaxial connector to suit your needs. These products are available in a wide range of sizes to suit a variety of cable dimensions, and choosing the right one will help to ensure the best possible signal transmission.

What are RF coaxial connectors used for?

RF coaxial connectors are used in a wide variety of industrial applications and the choice is dependent on the type of equipment deployed. Some of the most common uses of these connectors include:

  • Antennas
  • Broadcasting equipment
  • Data routers
  • Industrial and scientific measuring equipment
  • Television receivers
  • Two-way radios
  • Wi-Fi devices with removable antennas
  • Wireless communication systems

Each of these applications may require a different connector size or design, or a higher level of resistance to environmental conditions or accidental disconnection. As such, it is important to get expert advice on which RF coaxial connector would work best for your specific application, with consideration given to its voltage, locking mechanism and termination type.

What are the benefits of RF connectors?

RF coaxial connectors have been in use across a multitude of sectors for many years, with the newest systems offering significant advances in reliable data transmission and at lower costs.

Here are some of the key benefits you can expect to receive from your RF coaxial connector:

  • A wide range of options, with industry-standardised design features and versions available to provide higher durability
  • Effective in preventing interference or electrical resistance from undermining the performance of your critical systems
  • Designed to work with all types of cables at various sizes

Radiall is known as the industry’s most qualified manufacturer of RF coaxial connectors and offers the widest range of connectors within this category, with more than 12,000 part numbers and 72 product series, including series SMA, SMB, SMC, BNC and N-type. They also offer a broad selection of RF and microwave cable assemblies, along with a range of tools and adaptors to further optimise your equipment setup.

Find out more

If you want to know more about RF coaxial connectors or need guidance with selecting a suitable solution for your application, Northern Connectors is here to help.

You can explore the RF coaxial connectors section of our website, call us on 01744 815001, or complete our online contact form and we will be in touch at the nearest opportunity.

Technical expertise is just a click away. For rapid service & personalised support, complete the following form or call 01744 815 001

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