Description
The TNC (Threaded Neill-Concelman) series is a high-reliability RF interface that utilizes a threaded coupling to ensure stable electrical contact in high-vibration and high-shock environments. This female (jack) variant is specialized for the 10mm (0.400″) heavy-duty cable class, providing a precision fit for ultra-low-loss LMR400, military-spec RG213, and high-temperature RG393. It is widely used in panel-mount applications and cable-to-cable transitions where signal integrity and high power handling are paramount.
This connector utilizes a professional heavy-duty crimp termination system. The oversized outer ferrule creates a 360-degree mechanical bond with the cable’s braid and shielding, while the internal center contact is typically soldered or crimped to the conductor to ensure a low-resistance signal path. Manufactured with a reinforced nickel-plated brass body and premium PTFE (Teflon) insulation, it delivers consistent 50-Ohm performance and low VSWR up to 11 GHz. The threaded design provides superior EMI shielding and environmental resistance compared to BNC alternatives, making it ideal for cellular towers and tactical RF deployments.
Key Technical Advantages
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Large-Diameter Precision Match: Specifically calibrated for the 0.400-inch to 0.430-inch OD cable family, ensuring a seamless mechanical transition and high-strength pull-off resistance for heavy-gauge lines.
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Vibration-Proof Threaded Interface: The 7/16-28 external threads ensure a secure, locked connection when mated with TNC male plugs, preventing signal intermittent issues in high-shock environments.
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High-Power Handling: Designed to support the increased wattage and low attenuation characteristics of LMR400 and RG213, ensuring signal integrity over long-distance cable runs.
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Rugged 360° Crimp Termination: The heavy-walled ferrule provides a permanent, airtight grip on the cable jacket, protecting the internal dielectric from moisture ingress and mechanical stress.
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Superior Environmental Durability: The nickel-plated brass construction and PTFE dielectric offer excellent resistance to thermal cycling, oxidation, and UV exposure in tower-mounted or outdoor systems.
Key Features
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Interface Type: TNC Female (Jack) with standard 7/16-28 external threads.
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Termination Method: Crimp (Outer Ferrule) / Solder or Crimp (Center Contact).
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Cable Compatibility: Optimized for LMR400, RG8, RG11, RG213, and RG393 coaxial cables.
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Premium Construction: Features a nickel-plated brass body and high-performance PTFE dielectric.
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Common Application: Cellular base stations, cabinet bulkhead transitions, high-power radio systems, and long-distance antenna feeds.
Technical Summary
| Parameter | Specification |
| Impedance | 50 Ohm (Nominal) |
| Frequency Range | DC – 11 GHz |
| Body Material | Brass (Nickel Plated) |
| Contact Material | Phosphor Bronze or Brass (Gold Plated) |
| Dielectric | PTFE (Teflon) |
| Coupling Mechanism | Threaded (7/16-28 UNEF) |
| Operating Temp | -65°C ~ +165°C |






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