What is the Diameter of BNC Connector?

BNC Connector

Renhotec Technology has been inundated with queries from users about the diameter of the BNC connector. This article aims to elucidate this common question and provide a comprehensive understanding of the BNC connector’s attributes. Whether you’re a seasoned user or a newcomer, this article will enlighten you on the critical aspects of BNC connectors.

BNC Connector Diameter Specifications

BNC connectors are manufactured adhering to two primary specifications: the international standard of 10.00mm and the non-standard variant at 9.8mm. Renhotec Technology prides itself on producing BNC connectors in alignment with these standards. If your requirements deviate from these norms, our proficient electronic engineers are available for consultation. They will craft solutions tailored to your specifications while maintaining scientific rigor to fulfill your unique demands.


BNC Connector

The BNC connector, or Bayonet Neill-Concelman connector, is a quintessential component in the realm of coaxial cable connectors. Initially conceived in the 1940s, its omnipresence spans telecommunications, broadcasting, electronics, and instrumentation. Its moniker is derived from its ingenious creators, Paul Neill and Carl Concelman.

Key Features and Attributes

Coaxial Design: BNC connectors are meticulously designed for coaxial cables. This configuration encompasses a central conductor enveloped in insulation, encased by an outer conductor or shield. This design preserves consistent impedance—a cornerstone for optimal RF applications.

Swift Connect/Disconnect: A hallmark feature is the BNC connector’s bayonet coupling mechanism. A simple quarter-turn rotation suffices to establish or sever connections, guaranteeing steadfast and dependable links.

Versatility in Variants: BNC connectors manifest in diverse iterations—BNC male, BNC female, and TNC (Threaded Neill-Concelman) connectors. The male counterpart sports a protruding center pin, while the female version embraces the pin receptacle. TNC connectors, akin to BNC connectors, employ threaded coupling for connectivity.

Impedance Options: BNC connectors are available in 50-ohm and 75-ohm variants. The former predominates data communication and RF domains, whereas the latter finds its niche in video and broadcast applications.

Broad Applications: BNC connectors play an indispensable role in connecting RF apparatus such as antennas, signal generators, oscilloscopes, video surveillance setups, and networking equipment. Their ease of use and reliable connections also make them a staple in test and measurement setups.


For in-depth insights into BNC connectors, our official website hosts a plethora of technical documents. Renhotec Technology, a stalwart BNC connector manufacturer, boasts nearly 12 years of industry presence, brimming with extensive production experience. Our BNC connectors epitomize stability, precision, and eco-friendliness, underscored by ISO certification. For an array of Renhotec BNC connector products, visit our product display channel at: BNC Connector. Here, you’ll find detailed product specifications, high-definition drawings, and pertinent information.

Leave a Reply

Your email address will not be published. Required fields are marked *