BNC 50 Ω RF Connectors Guide: Types, Structure, and Uses Explained
What are BNC 50 Ω RF Connectors?
Tyclon’s BNC 50 Ω RF connectors are the industry standard for secure, reliable signal transmission in demanding radio, test, and data communication systems. Defined by their quick, positive bayonet coupling and durable construction, they are engineered to provide consistent performance from DC up to 2 GHz for professional equipment. Tyclon offers a comprehensive range of BNC solutions, including cable connectors, PCB mounts, and adapters, compatible with widely used coaxial cables like RG-58 and RG-174.
Tyclon's 50 Ω BNC series is optimized specifically for impedance-matched data and power transmission. The full series is RoHS and REACH compliant. You can purchase directly from our catalog or contact Tyclon for custom solutions; detailed datasheets, expert technical support, and assembly guides are readily available for your project.
BNC Connector Types & Classifications
Plugs (Male)
Features a male interface (center pin). Typically used for cable termination on the mating side.
Jacks (Female)
Features a female interface (center socket). Designed for cable termination on the mating side.
Receptacles
Features a female interface. Designed for fixed mounting on PCBs (Printed Circuit Boards), panels, or device chassis.
Adapters
Features male or female interfaces at both ends. Used for interconnecting, converting genders, or transitioning between different connector series.
BNC Cable Assemblies
Pre-terminated coaxial cables with BNC connectors.
BNC 50 Ω RF Connectors by Type
BNC 50 Ω RF Connector Features
High-Frequency Performance
Tyclon’s BNC connectors support up to 4 GHz with precise 50 Ω impedance matching. We ensure superior signal integrity for broadcast, telecommunications, and test measurement systems.
Coupling Method
The BNC bayonet coupling mechanism provides both ease of use and assured retention. Simply align the plug with the jack's guides and rotate the ring slightly to lock it securely. Removal is achieved by turning in the opposite direction. This mechanism ensures rapid connection and disconnection, making it ideal for high-speed test and measurement environments, while its robust hold prevents accidental un-mating, even when the cable is tugged.
Trivia: The Origin of BNC
The name BNC is often thought to come from "Bayonet" and "Neill Concelman," the connector manufacturer. However, there are various theories, including interpretations like BayoNet Connector, Baby-series N Connector, and British National Connector.
50 Ω Impedance and Performance
Our BNC connector series strictly adheres to the industry-standard 50 Ω impedance. This is optimized primarily for power (RF power) and data signal transmission in radio equipment, data communications, and critical test instruments. Tyclon's 50 Ω BNC connectors reliably deliver high-performance from DC up to 2 GHz, ensuring minimal signal reflection (return loss).
50 Ω vs. 75 Ω
50 Ω is specialized for radio/data transmission (power transfer), while 75 Ω is optimized for broadcast/video transmission (minimal loss). Connecting different impedances causes reflection, making it essential to match the system impedance, especially above 200 MHz.
Compatibility
"Our BNC 50 Ω connectors are designed to terminate a variety of coaxial cables. The most commonly supported types, suitable for diverse frequency and power handling requirements, include:
* RG-58
* RG-174
* RG-142B
These connectors are the reliable choice for connections in Test & Measurement, Data Communication, and Wireless Communication systems."
Materials & Compliance
Committed to global environmental standards, all Tyclon BNC connectors are RoHS- and REACH-compliant. We utilize premium materials, such as high-grade brass with corrosion-resistant nickel or gold plating, ensuring long-term durability and stable electrical conductivity in demanding environments.
BNC 50 Ω RF Connector Applications
Tyclon’s dependable BNC 50 Ω RF connectors are engineered to deliver secure, consistent, and low-loss signal transmission across a wide range of communication and electronic systems. Built with a robust bayonet coupling mechanism, the series ensures fast, reliable mating and stable performance for laboratory, industrial, and general-purpose RF applications.
- Test & Measurement Equipment: The durable bayonet lock enables rapid, tool-free mating and reconfiguration, supporting efficient workflows in environments using oscilloscopes, analyzers, and signal-generation instruments. This secure interface helps maintain repeatable, high-integrity measurements.
- Data Transmission Interfaces: BNC 50 Ω connectors provide a stable, impedance-controlled connection for coaxial-based communication links and instrumentation systems. Their consistent electrical characteristics support dependable signal handling in both modern and legacy equipment architectures.
- Radio Communication and Low-Power RF Systems: Well suited for low-power RF paths, BNC connectors offer a reliable interface between antennas, tuning modules, and communication units, ensuring clean signal delivery in monitoring and control applications.
- Industrial Automation and Monitoring Systems: In Factory Automation (FA) and data-acquisition environments, the bayonet mechanism’s secure tactile engagement helps prevent accidental disconnection, even in vibration-prone installations. This reliability supports accurate timing, triggering, and real-time signal synchronization across distributed equipment.
BNC 50 Ω RF Connector: Standards & Technical Specifications
Compatible Standards
Complies with military / industry standards MIL-C-39012 and JIS C 5412, ensuring reliable performance and interoperability.
Nominal Impedance
Impedance rating is 50 Ω, indicating compatibility with most standard RF equipment and supporting consistent coaxial signal transmission.
Coupling Method (Connector Interface)
Connectors securely join using a bayonet coupling mechanism for stable signal transmission and quick, reliable mating and disconnection.
Working Voltage (Rated Voltage)
Rated for standard operating voltage of up to 500 V AC.
Maximum Withstanding Voltage
Safely withstands up to AC 1,500 V for one minute without electrical breakdown.
Insulation Resistance
Minimum insulation resistance of 1,000 MΩ when tested with 500 V DC, ensuring electrical safety and preventing leakage.
Contact Resistance
Maximum contact resistance of 3 mΩ when conducting 1 A DC, ensuring efficient connection and minimal signal loss.
Frequency Range
Suitable for signals within the frequency range from 0 to 4,000 MHz (4 GHz).
Materials
Constructed using durable materials including high-quality Brass and robust Zinc Die-cast components for longevity.
Surface Treatment
Finished with Nickel plating surface treatment, providing corrosion resistance and ensuring reliable electrical contact.
Wiring Method
Supports versatile wiring methods including Solder, Crimp, and Clamp terminations for flexible cable assembly options.
Note: The figures provided are typical values. For further details, please contact us.
In-Stock Coaxial Cables with BNC 50 Ω RF Connectors
BNC Plug-to-BNC Plug RG-58A/U Cable Assemblies
Micro-Coaxial Cables
Semi-Flexible
Semi-rigid
Trivia: Compatible Cable Types
- MIL Standard Cables: Also called Mil-Spec, these cables meet strict US military standards for performance and durability. Often starting with "RG" (Radio Guide), they are essential in high-demand areas like defense, aerospace, and telecommunications.
- Micro Coaxial Cables: These ultra-thin cables are designed to connect to miniature RF connectors like U.FL. They ensure signal integrity in space-constrained electronic devices such as smartphones, laptops, and medical equipment.
- Semi-Flexible Coaxial Cables: With moderate flexibility, these cables can bend and hold their shape while offering strong shielding and low signal loss, making them ideal for precise routing in telecommunications, test equipment, and internal electronics.
- Semi-Rigid Coaxial Cables: Made from a seamless metal tube, these cables provide superior shielding and minimal signal loss. Their rigid design ensures stable performance in critical applications like military systems, high-frequency instruments, aerospace, and microwave assemblies.
BNC 50 Ω RF Connector FAQs
QCan BNC and 75Ω types be connected?
QCan BNC and 75Ω types be connected?
Yes, mechanical mating is possible, but it is not recommended for performance above 200 MHz. This mismatch introduces an impedance discontinuity (or reflection), which severely degrades signal integrity at higher frequencies. For optimal system performance, always ensure all components—connector, cable, and equipment—match the required 50 Ω impedance.
> BNC 75Ω
QHow can I reduce the cost of the cable assembly?
QHow can I reduce the cost of the cable assembly?
We offer crimp-type connectors, which require a crimping tool but are lighter and more affordable than clamping-type connectors. If you would like, we can process the cable assembly for you, so no crimping tool is needed.
Crimp-type: Lightweight and cost-efficient, ideal for high-volume production. Provides consistent termination quality but requires a dedicated crimping tool.
QAre there connectors that provide a stronger cable connection?
QAre there connectors that provide a stronger cable connection?
Clamping-type connectors provide a more secure connection than crimp-type ones. The ""Z"" series, which uses a triple chuck method, has a clamping nut that tightly grips the cable jacket, making disconnection more difficult.
Clamping-type: Offers superior mechanical retention and pull-out strength by firmly securing the cable jacket. Suitable for larger or more rugged cable assemblies and typically requires only basic hand tools.
QDo you offer plugs that don’t require soldering or crimping tools?
QDo you offer plugs that don’t require soldering or crimping tools?
Yes, we have one-touch tightening plugs that don’t require soldering or crimping tools. These are convenient for on-site processing, as soldering is time-consuming and crimping tools can be expensive for small batches.
QCan I use a right-angle connector if no compatible cable is available?
QCan I use a right-angle connector if no compatible cable is available?
If a right-angle connector isn’t compatible with your cable, you can often use a straight connector combined with a right-angle adaptor.
QDo you have waterproof connectors?
QDo you have waterproof connectors?
Yes, we offer waterproof BNC connectors, with varying IP ratings depending on the product. The waterproofing features include:
1. Mating part waterproofing
2. Cable attachment point waterproofing
3. O-ring waterproofing at the cable attachment point
4. O-ring waterproofing at the flange mount
QHow can I order BNC 50 Ω RF connectors, and what support do you offer?
QHow can I order BNC 50 Ω RF connectors, and what support do you offer?
Ordering is simple—you can purchase our BNC 50 Ω RF connectors directly on our website or contact our sales team for assistance. We also provide full technical support, including datasheets, CAD models, and application notes, to help you pick the perfect connector for your project.
Purchase Guide
Tyclon coaxial connectors and processed coaxial cable products can be purchased directly online using a variety of credit cards.
Catalog
BNC 50 Ω RF Connector Catalog
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