TNC Connector Ultimate Guide: Everything You Need to Know

TNC connector is common RF connector that play an important role in modern communications and electronics. This article will introduce you to TNC connectors, covering their definition, types, design, functionality, applications, and future trends.

What is TNC Connector

The TNC connector is a common type of Radio Frequency connector used to connect RF cables and devices, ensuring stable signal transmission and connections. TNC stands for Threaded Neill-Concelman connector, featuring a threaded design for secure and stable connections, widely used in communication and electronic devices.


TNC Male Connector

The TNC male connector, also known as TNC Plug connector, has external threads and internal pins, commonly used at the device end.

TNC Male Connector
TNC Male Connector

TNC Female Connector

The TNC female connector, also known as TNC Jack connector, has internal threads and an external interface, commonly used at the end of coaxial cables.

TNC Female Connector
TNC Female Connector

RP-TNC Connector

Reverse Polarity(RP) TNC is a reverse polarity version of the TNC connector commonly used in wireless network devices and other applications to prevent interference caused by mistakenly plugging in a regular TNC connector. Its internal structure differs from the standard TNC connector and cannot be intermated with standard TNC connectors.

RP-TNC Connector
RP-TNC Connector

TNCA Connector

The TNCA connector is a variant of the TNC connector with an angled design, providing more flexible connections in limited spaces. TNCA connectors are typically used in situations where connections need to be made in tight spaces, reducing the space requirements between connectors.

75 ohm TNC Connector

The 75 ohm TNC connector is a special design used to match 75 ohm coaxial cables. They are commonly used in video, broadcast, and other applications that require a 75 ohm impedance match.


TNC connectors mainly come in two shapes. 

Installation Options

According to different needs and applications, TNC connectors can be installed in the following ways:

  • Soldering installation: soldering the connector to the circuit board or coaxial cable.
  • Crimp installation: using specialized tools to crimp the connector onto the end of the coaxial cable.
  • Threaded installation: securing the connector to a device by rotating its threads.
  • Clamp installation: fastening the connector to a device using nuts or clamps.
  • PCB installation: connectors designed for direct installation on printed circuit boards.


TNC connectors typically consist of the following main parts:

TNC connectors Structure
TNC connectors Structure
  • Shell: The external metal casing of the connector, used to protect internal components and provide mechanical support.
  • Center Pin: The central conductor inside the connector, used for signal transmission.
  • Dielectric: Insulating material used to isolate and support the center pin.
  • Coupling Nut: Nut used to connect and secure the connector, allowing it to connect to other devices.
  • Ground Ring: The grounding part of the connector, ensuring the connector’s grounding connection.
  • Sealing Gasket: Waterproof and dustproof gasket to ensure the connector’s port is not affected by external conditions.

Here is the basic knowledge about TNC connectors. Understanding these will greatly benefit your work and projects in the field of electronic devices. If you have any questions or need further assistance, feel free to contact us.

see also

SMA Connector

SMB Connector

BNC Connector

SMC Connector

SMP Connector

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