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299.25
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N M RA CLAMP for 1/4" Feeder Cable

299.25

N M RA CLAMP for 1/4″ Feeder Cable

299.25

Industrial-grade N-Type Male Right Angle (90°) Clamp Connector precision-engineered for low-loss 50-Ohm terminations on 1/4″ Annular Corrugated Feeder Cable (e.g., LDF1-50, FSJ1-50A). Featuring a space-saving profile and a high-torque mechanical compression clamp, this plug is the professional choice for jumper assemblies in small cell sites, GPS systems, and tight-access RF infrastructure.

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Description

Description

The N-Type connector is the industry standard for high-reliability RF infrastructure, valued for its mechanical robustness and superior power handling. This Right Angle (RA) variant is specialized for the 1/4″ corrugated cable class, which is frequently used for high-performance jumpers where space is limited. The 90-degree elbow configuration is essential for tight-clearance cabinet routing and bulkhead connections, allowing for clean cable management without exceeding the minimum bend radius of the feeder cable.

This connector utilizes a specialized mechanical compression clamp termination designed to grip the solid, annularly corrugated copper outer conductor of 1/4″ cables. This ensures an airtight, low-resistance electrical bond that maintains superior Passive Intermodulation (PIM) performance. The clamp design allows for precision, high-strength terminations on-site using standard wrenches, eliminating the need for specialized hydraulic crimping tools. Manufactured with a reinforced tri-metal or nickel-plated brass body and premium PTFE (Teflon) insulation, it delivers consistent 50-Ohm performance and low VSWR up to 18 GHz.


Key Technical Advantages

  • Compact 90° Routing: Reduces the depth required for connections, facilitating high-density cable management in small enclosures and equipment racks.

  • 1/4″ Corrugated Cable Match: Specifically engineered for the annular corrugation profile of 1/4″ cables, ensuring maximum surface contact for superior electrical conductivity and mechanical pull-off strength.

  • Low-PIM Performance: The precision-machined clamp interface minimizes non-linearities, a critical requirement for modern 5G, LTE, and multi-carrier wireless networks.

  • Field-Installable Design: The mechanical compression system allows for high-integrity assembly on-site, facilitating efficient jumper fabrication and system maintenance.

  • Rugged Environmental Sealing: Features integrated O-ring gaskets to provide an IP-rated moisture barrier, protecting the cable interface from oxidation and environmental degradation.


Key Features

  • Interface Type: N-Type Male (Plug) Right Angle (90°) with standard 5/8-24 threaded coupling.

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

  • Cable Compatibility: Optimized for 1/4″ Annular Corrugated Feeder Cables (LDF1-50, FSJ1-50A, SCF14-50, etc.).

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

  • Common Application: Small cell deployments, GPS antenna systems, internal cabinet jumpers, and Distributed Antenna Systems (DAS).


Technical Summary

Parameter Specification
Impedance 50 Ohm (Nominal)
Frequency Range DC – 18 GHz
Body Material Brass (Tri-metal or Nickel Plated)
Contact Material Beryllium Copper (Gold or Silver Plated)
Dielectric PTFE (Teflon)
Coupling Mechanism Threaded (5/8-24 UNEF)
Operating Temp -40°C ~ +85°C
Additional information

Additional information

Frequency Range

DC-6 GHz

Impedance

50Ω

Dielectric withsanding V

2.5 kV rms

Insulation resistance

= 5000 MO

Contact resistance

Inner Contact: =2 mO; Outer Contact: =1.5 mO

RF leakage

-90 dB minimum at 3 GHz

Durability (matings)

5/8-24 threaded coupling

Body and Outer Contacts

Brass, gold & silver plated

Compliance

ROHS

Operating Temperature(?)

-50 to +120

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