TNC to TNC Cable
Secure extensions for antennas, radios, and vibration-prone RF equipment.
Configure →Custom TNC Cable Assembly
Build custom TNC cable assemblies that remain securely connected through vibration, movement, and environmental exposure. Use our custom RF cable assembly tool to define your interfaces, coaxial cable, length, orientation, and performance requirements.
Exact-Match Configurations
VNA Test Reports Provided
Pre-Production Design Review
Request Custom RF Cable Assembly Quotes
Submit your custom RF requirements for a verified technical review and formal wholesale pricing within 24 hours.
Popular TNC Cable Configurations
Configure each assembly with the required gender, orientation, bulkhead mounting, cable family, and finished length.
TNC to SMA Cable
Connect rugged TNC ports to compact RF modules and instruments.
Configure →TNC to N Type Cable
Build low-loss antenna connections for outdoor and mobile RF systems.
Configure →TNC to BNC Cable
Bridge threaded installations with BNC test or legacy equipment.
Configure →TNC to F Type Cable
Connect TNC and F-type interfaces in wireless antenna systems.
Configure →TNC to MMCX Cable
Route external TNC connections to compact embedded RF hardware.
Configure →TNC Cable Assembly Overview & Compatibility
Use this overview to narrow the build, then select a cable family that fits your system.
Interface overview
Impedance50 Ω / 75 Ω
Frequency rangeDC–11 GHz (up to 18 GHz)
VSWRAs low as 1.30:1
Operating temperatureFrom -65°C to +165°C
Insertion lossSpecified by cable, length, connectors, and operating frequency
Environmental sealingIP67 options available
Compatible cable families
| Cable | Best for | Flexibility | Loss | Impedance |
|---|---|---|---|---|
| Flexible RF coax | General RF and antenna runs | High | Moderate | 50 / 75 Ω |
| Low-loss flexible | Longer outdoor RF runs | Medium–high | Low | 50 Ω |
| Broadcast coax | Video and broadband systems | High | Low–moderate | 75 Ω |
| Semi-rigid | Precision fixed routing | Low | Low | 50 Ω |
| Hand-formable | Compact controlled routing | Medium | Low | 50 Ω |
Final compatibility and performance are confirmed during engineering review.
Built Around Your RF Requirement
The threaded TNC interface maintains its mechanical grip while the cable, shielding, and protective construction can be engineered around the actual RF path.
Connections That Do Not Work Loose
The threaded coupling resists accidental disconnection under vibration, shock, movement, and repeated mechanical stress.
RF Performance Up to 18 GHz
Standard assemblies operate up to 11 GHz, while qualified combinations support up to 18 GHz.
Protection Beyond the Equipment Enclosure
Eligible assemblies can incorporate IP67 sealing, strain relief, and armor for demanding installations.
Fewer Adapters, Cleaner Integration
Choose standard or reverse polarity, 50 Ω or 75 Ω impedance, and straight, right-angle, or bulkhead connectors to fit the equipment directly.
TNC Cable Assembly Applications
TNC cable assemblies are built for systems where accidental decoupling, mechanical movement, or environmental exposure could compromise the RF connection.
Aerospace and defense
Secure signal routing for equipment exposed to shock and vibration.
Wireless infrastructure and antennas
Outdoor antenna feeds for base stations, GPS/GNSS, RFID, and distributed wireless systems.
Industrial and mobile equipment
Reliable RF connections for heavy machinery and equipment in continuous motion.
Test and measurement
Instrument connections for extended tests and setups where cables must remain securely mated.
What Is a TNC Cable Assembly?
A TNC cable assembly is a complete coaxial interconnect terminated with at least one threaded TNC connector. Unlike BNC’s bayonet coupling, the TNC interface stays securely mated under vibration and movement.
TNC Cable Specifications and RF Performance
The following values represent capabilities available across the product family; final ratings are confirmed for the selected connectors, cable, length, and construction.
Electrical Specifications
Parameter | Available Specification |
Impedance | 50 Ω / 75 Ω |
Frequency range | DC–11 GHz standard; DC–18 GHz extended |
VSWR | 1.30:1 max through 11 GHz with qualified configurations |
Insertion loss | Specified for the finished length and operating frequency |
RF leakage | Up to -60 dB at 3 GHz with qualified interfaces |
Voltage rating | Up to 500 V peak |
Dielectric withstand | Up to 1500 VRMS with qualified components |
Insulation resistance | 5000 MΩ minimum with qualified components |
Power handling | Up to 316 W at 1 GHz and 25°C; configuration-dependent |
Mechanical and Configuration Specifications
Parameter | Available Options |
Coupling mechanism | 7/16"-28 threaded |
Connector configurations | TNC to TNC and between-series assemblies |
Polarity | Standard / reverse polarity |
Gender | Plug / jack |
Orientation | Straight / right-angle |
Mounting | Free-hanging / bulkhead / panel mount |
Mating durability | 500 cycles minimum with qualified connectors |
Cable construction | Flexible, low-loss flexible, broadcast, semi-rigid, and hand-formable |
Finished length | Custom to drawing or BOM |
Bend radius | Determined by the selected cable |
Protective options | Strain relief, heat-shrink boots, weather-resistant jackets, and armor |
TNC Assembly Environmental Specifications
Parameter | Available Qualification |
Operating temperature | -65°C to +165°C with qualified components |
Environmental sealing | IP67 options available |
Thermal shock | MIL-STD-202, Method 107, Condition B |
Corrosion resistance | MIL-STD-202, Method 101, Condition B |
Vibration | MIL-STD-202, Method 204, Condition B |
Mechanical shock | MIL-STD-202, Method 213, Condition G |
Moisture resistance | MIL-STD-202, Method 106 |
Altitude | MIL-STD-202, Method 105, Condition C |
Interface standard | MIL-STD-348 |
Standard TNC vs RP-TNC Assemblies
Standard TNC and reverse-polarity TNC cable assemblies use the same threaded housing styles but opposite center-contact arrangements. Because polarity does not change the external plug or jack body, connectors that look mechanically compatible may still have the wrong internal contact.
Feature | Standard TNC | RP-TNC |
Plug center contact | Pin | Socket |
Jack center contact | Socket | Pin |
Threaded housing | Standard plug/jack arrangement | Same plug/jack arrangement |
Compatibility | Mates with standard TNC | Mates with RP-TNC |
Common applications | General RF, test, industrial, military | WLAN, RFID, antennas, wireless networking |
TNC Cable Quality Assurance
Each order is inspected against the approved drawing and specified acceptance requirements before release.
Continuity and Hi-Pot testing verify the integrity of the center conductor, dielectric, and shield.
VNA verification of insertion loss and VSWR is available at the specified operating frequencies, with test reports provided when required.
Dimensional and visual inspection confirms finished length, connector gender, polarity, orientation, and assembly workmanship.
Termination and retention checks verify crimp, solder, connector attachment, and strain relief, with lot traceability available for production orders.
BEFORE YOU REQUEST A QUOTE
TNC Cable Assembly FAQs
Are TNC cable assemblies available in both 50 Ω and 75 Ω?
Yes. We manufacture 50 Ω TNC assemblies for RF, wireless, antenna, industrial, and test systems, as well as 75 Ω configurations for compatible video and broadband equipment.
Can standard TNC and RP-TNC connectors mate?
No. Although standard and reverse-polarity TNC connectors use similar threaded housings, their center contacts are reversed. Attempting to combine them results in two pins or two sockets facing each other.
Which coaxial cable is best for a long TNC antenna run?
Low-loss flexible coax is generally the best choice for longer TNC antenna runs because it reduces attenuation compared with standard flexible cable. The correct cable size depends on the run length, operating frequency, acceptable insertion loss, power level, routing space, and minimum bend-radius requirements.
How does cable length affect TNC assembly insertion loss?
Insertion loss increases as the cable becomes longer and typically rises further at higher frequencies. Total assembly loss also includes the TNC connectors and any right-angle or between-series transitions.
Can TNC assemblies use right-angle or bulkhead connectors?
Yes. TNC cable assemblies can use straight or right-angle plugs and jacks, including front- and rear-mount bulkhead configurations. Right-angle connectors simplify routing in restricted spaces, while bulkhead connectors provide a fixed equipment-panel interface and can incorporate environmental sealing where required.
SUBMIT REQUIREMENT
Configure Your Assembly or Upload Existing BOM
<p>Select your specifications online or upload complete drawings for engineering review.</p>