TNC M CLAMP for 1/2″ Feeder Cable

Description

The TNC (Threaded Neill-Concelman) series is a ruggedized RF interface designed to maintain electrical continuity in high-vibration environments by utilizing a 7/16-28 threaded coupling. This male (plug) variant is specifically specialized for 1/2″ Feeder Cable, a standard in wireless infrastructure for its ultra-low attenuation properties. It provides a precision interface between thick, semi-flexible corrugated cables and radio equipment or jumpers.

This connector utilizes a professional clamp termination system designed for high-power applications. Unlike crimp connectors used for smaller cables, this clamp design uses a high-torque compression nut and an internal mandrel to secure the corrugated outer conductor of the 1/2″ cable. This ensures an airtight, low-PIM (Passive Intermodulation) connection that is essential for carrier-grade signal integrity. Manufactured with a reinforced nickel-plated brass body and premium PTFE (Teflon) insulation, it delivers stable 50-Ohm impedance and low VSWR up to 11 GHz.

Key Technical Advantages

• Optimized for 1/2″ Feeder: Precision-machined to accommodate the specific dimensions of 1/2″ corrugated copper or aluminum outer conductors, ensuring maximum mechanical grip.

• Low-PIM Performance: The high-pressure clamp mechanism minimizes contact resistance and non-linearities, reducing passive intermodulation (PIM) in high-power cellular environments.

• Vibration-Proof Threaded Interface: The 7/16-28 threaded mechanism prevents signal intermittent issues and accidental disconnection, making it superior to BNC alternatives for outdoor tower sites.

• Weather-Resistant Sealing: Integrated gaskets and O-rings provide an IP-rated moisture barrier, protecting the cable’s internal dielectric from moisture ingress and corrosion in harsh outdoor deployments.

• Field-Serviceable Assembly: Can be installed using standard wrenches, facilitating onsite tower-top terminations or remote base station maintenance without specialized hydraulic crimping tools.

Key Features

• Interface Type: TNC Male (Plug) with standard 7/16-28 threaded coupling.

• Termination Method: Clamp (Outer Conductor) / Solder or Captive (Center Pin).

• Cable Compatibility: Optimized for 1/2″ Corrugated Feeder Cables (LDF4-50A, Heliax, etc.).

• Premium Construction: Features a nickel-plated brass body and high-performance PTFE dielectric.

• Common Application: Macro cell sites, DAS systems, high-power FM/AM transmitters, and outdoor RF backhaul.

Technical Summary