2.2-5 Connectors
Compact, low-PIM RF connectors ideal for small-cell, DAS and 5G infrastructure
Overview
Amphenol RF’s 2.2‑5 connector family delivers a 53% reduction in size compared to 4.3‑10 connectors while supporting the same robust performance. Designed for high-frequency RF systems, these lightweight connectors accommodate thick, low-loss cables up to ½″ and maintain excellent passive intermodulation (PIM) performance—essential for demanding wireless and broadcast deployments. IP68-rated when mated, they’re engineered to perform reliably in both indoor and outdoor environments.
This series is optimized for quick assembly through both push‑pull blind-mate and threaded coupling options, enhancing installation flexibility. With support for DC–20 GHz and PIM as low as –166 dBc, 2.2‑5 connectors are ideal for high-density RF applications, including small cells, in-building systems and mobile base stations.
Features and Benefits
- Ultra-compact footprint: 53% smaller than 4.3‑10 connectors, ideal for space-constrained designs
- Low‑PIM performance: Achieves −166 dBc at 2 × 20 W, preserving network signal quality
- High-frequency range: Operates from DC to 20 GHz when terminated with the right cable
- Installation flexibility: Offers push‑pull blind-mate and threaded coupling mechanisms
- Rugged reliability: IP68 sealed in mated condition for outdoor and harsh environments.
Key Technical Details
- Supports ½″ diameter cables, including conformable and semi-rigid types
- DC–20 GHz frequency range (cable-dependent)
- Voltage rating: 500 VRMS continuous; dielectric withstanding voltage of 1500 VRMS
- VSWR: ~1.025 (DC–3 GHz), ~1.032 (3–6 GHz), cable/color-dependent
- Power handling: 250 W at 2 GHz, 40 °C; Intermodulation (PIM): –166 dBc @ 2 × 20 W
Applications
- Small-cell and 5G networks – compact, high-performance connector for dense deployments
- Distributed antenna systems (DAS) – low-PIM connectors for high-speed signal distribution
- In-building wireless – reliable RF interface for corporate, healthcare and campus systems
- Low-power base stations – rugged design tolerates environmental exposure
- Test and measurement – high-frequency, low-reflection interface for lab and field use
Browse our complete range of 2.2‑5 connectors—including straight, right-angle and panel-mount variants. If you require custom cable assembly, impedance variation, or specialized mounting options, contact our experts to explore tailored design solutions.
Specifications
2.2-5 Connector
Electrical
| Impedance | 50 Ohm |
| Frequency Range | DC - 20 GHz |
| Voltage Rating | 500 Volts RMS Continuous |
| Dielectric Withstanding Voltage | 1500 VRMS Min |
| VSWR |
|
|
Interface
|
|
|
DC - 3 GHz
|
1.025 (-38 dB) Typ |
|
3 - 6 GHz
|
1.032 (-36 dB) Typ |
|
Cable Connector
|
|
|
DC - 4 GHz
|
1.046 (-33 dB) Typ |
|
4- 6 GHz
|
1.065 (-30 dB) Typ |
| Insulation Resistance | 3000 MΩ Min |
| Center Contact Resistance | 2 mΩ Max |
| Outer Contact Resistance | 1 mΩ Max |
| RF Leakage | -100 dB Max (DC - 3 GHz) |
| Insertion Loss | 0.03 √(f(GHz)) dB Max |
| Passive Intermodulation (PIM) | -166 dBc @ 2 X 20W |
| Power Handling | 250 W @ 2 GHz @ 40 ºC |
Environmental
| Temperature Range | −40°C to +85°C |
| Thermal Shock
|
IEC 60068-1
|
| Corrosion
|
IEC 60068-1
|
| Vibration
|
IEC 60068-1
|
| Mechanical Shock
|
IEC 60068-1
|
| Interface Sealing
|
IP68 in Mated Condition
|
Mechanical
| Mating Cycles | 100 Min |
| Coupling Mechanism | Threaded
|
| Interface Specification | Telegartner T00001A0052
|
| Engagement Force
|
32 N (7.2 lbs) Typ
|
| Disengagement Force
|
3.3 N (0.75 lbs) Typ
|
| Mating Torque, Min Working
|
26 inch-pounds (3 N-m)
|
Note: These characteristics are typical and may not apply to all connectors.
Connector configurations may affect performance.
Interface Dimensions
Plug
Jack
Related Resources
Give 5G wireless technology a boost with new 2.2-5 connectors
Amphenol RF is pleased to introduce the expansion of our 2.2-5 product series. This expansion includes new plug and jack cable mount configurations designed for 0.141” conformable, RG-402, Times Tflex 402 and Belden 1673A semi-rigid cable.
2.2-5 Connector Series
The Amphenol RF 2.2-5 Product Data Sheet highlights the 2.2-5 connector series, designed for high-performance RF applications requiring compact size, low PIM, and superior electrical performance. This connector series is engineered to support high-frequency, low-loss signal transmission, making it ideal for 5G networks, small cells, and distributed antenna systems (DAS). With a rugged, weatherproof design, these connectors ensure reliable performance in harsh environments while maintaining ease of installation through various coupling mechanisms, including threaded, push-pull, and hand-screw options.
White Paper: Passive Intermodulation Distortion
The document "Passive Intermodulation Distortion in Connectors, Cable and Cable Assemblies" by David Weinstein of Amphenol Corporation discusses the causes, impacts, and measurement of Passive Intermodulation Distortion (PIM) in RF components. It explains how PIM is generated by non-linear mixing in passive devices like connectors and cables, causing unwanted signals that can interfere with communication systems. The paper outlines design guidelines to minimize PIM, including contact design, material choices and cleanliness, and describes testing methods to ensure low PIM performance.
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