What are BNC and TNC Connectors?

To satisfy network frequency requirements of coaxial cables, various connector components are available to address any one of your networking issues. Assisting the transfer of signals through radio frequency (RF) and microwave applications, equipment like coaxial connectors are vital and necessary for connecting cabling to other devices. Offering long-lasting connections for cabling across digital, video, audio, RF, and microwave industries, different coaxial connectors exist to provide unique qualities across a spectrum of functions. Specifically, parts like BNC and TNC connectors are used to carry a frequency range of DC to GHz. Serving distinct purposes in devices we use everyday, we will compare BNC and TNC connectors, highlighting their benefits while addressing their primary differences.

BNC Connector

Short for “Bayonet Neill–Concelman,” BNC connectors are small components used to quickly connect or disconnect radio frequency connectors used for coaxial cables. Though originating for military use, BNC connectors have been adopted into video and RF applications up to 4GHz. Constructed with an outer conductor affixed with slots, in addition to plastic dielectric fixtures on male and female connector parts, BNC connectors are best employed for analog and serial digital interface video signals, radio antennas, avionics, test equipment, and nuclear instrumentation. For optimal stability across connections, these components are available in both 50 Ω and 75 Ω versions across male and female genders.

To install a BNC connector, its applied protective solution must first be removed with the aid of a stripping tool. Separating the cable from all protective shielding, the connector piece can then be pushed onto the cabling and crimped for secure adherence. Inexpensive in cost, BNC connectors allow for speedy repairs and hassle-free maintenance.

TNC Connector

Similar in resemblance to BNC connectors, TNC connectors are manufactured for applications where intense vibrations are a prominent force. Designed for antenna, industrial, wireless, military, and broadband applications, TNC connectors come in a variety of designs to suit an array of axial cable types. Waterproof and miniature in size, these connectors can transfer frequency ranges of DC up to 11GHz while retaining a constant 50 Ω impedance. Available in standard, reverse polarity, reverse threading for reverse polarity keying, and 75 Ω variations, male and female connector parts should be applied with caution based on individual product recommendation.

Triaxial Connectors

When a system requires parts built to the highest quality standards available, triax and triaxial cables are always a consideration. A variant of BNC connector, triaxial (triax) connectors are adapted for heavy duty industrial, military, and instrumentation applications. Constructed to maintain maximum RF shielding and mitigate noise radiation, triax can reach an upwards of 5000V for high temperature facilitation. Typically reserved for harsh environments where extreme temperatures are present, triaxial connectors are useful tools for nuclear reactor chambers and other similar applications.

At Aviation Store Online, we make it our goal to provide you with parts ASAP. Understanding that time can be of the essence, we invite you to browse our inventory for numerous connectors ready to be put into operation. Whether your systems require a TNC or BNC connector, RF connector, coaxial cable, screws, or more, Aviation Store Online is here to streamline and expedite any one of your orders for immediate procurement. Due to our quality control and export compliance, we operate with AS9120B, ISO 9001:2015, and FAA AC 00-56B certification and accreditation, alongside our NO CHINA sourcing pledge. If you would like to request a quote for your comparisons, you can submit an RFQ form as provided on our website. Upon receipt, a dedicated account manager will quickly review and respond with a personalized solution to your needs in just 15 minutes or less, 24/7x365.  



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