MMCX Connectors
Compact snap-on RF connectors with broadband capability up to DC–6 GHz
Overview
Amphenol RF’s MMCX (Micro‑Miniature Coaxial) connectors are a streamlined version of MCX, offering reliable 50 Ω performance in space-constrained applications. With a quick snap-on design and rugged construction, these versatile connectors support broadband signals, ideal for modern RF systems.
Available in cable plugs, PCB jacks, right-angle, and panel-mount formats, MMCX connectors accommodate both standard and custom configurations. They conform to European CECC 22000 standards, ensuring consistent electrical performance and mechanical reliability.
Features and Benefits
- Broadband performance from DC to 6 GHz, with low signal reflection
- Quick-connect snap-on coupling for fast, tool-free mating and demating
- Compact footprint ideal for tight PCB layouts and small-scale devices
- Durable mechanics rated for ≥ 500 mating cycles with consistent contact performance
- CECC 22000 compliant, ensuring reliable quality control and standardization
Key Technical Details
- Impedance: 50 Ω nominal
- Frequency Range: DC–6 GHz, cable-dependent
- Voltage Rating: ~170 VRMS continuous with 500 VRMS dielectric withstand
- VSWR: ≤ 1.25 (DC–4 GHz), ≤ 1.40 (4–6 GHz)
- Insertion Loss: 0.1 √f(GHz) dB max
- Mating Cycles: ≥ 500 push-on cycles
- Temperature Range: –40 °C to +90 °C
- Materials: Gold-plated brass body, PTFE insulator
Applications
- Embedded and handheld devices (Wi‑Fi modules, IoT, GPS)
- Antenna interfaces for wireless modules and test gear
- Satcom, base-station, and broadband connectivity
- RF switching panels and measurement equipment
- Cable assemblies connecting MMCX to AMC, AMC4, SMA, and more
Explore our comprehensive range of MMCX connectors—from straight and right-angle PCB jacks to panel-mount and cable plugs—as well as inter-series adapters. For tailored cable assemblies, hybrid interfaces, or ruggedized configurations, contact our engineering team to design a solution that meets your specific RF needs.
Specifications
MMCX Connectors
Electrical
| Impedance | 50 Ohm |
| Frequency Range | DC - 6 GHz |
| Voltage Rating | 170 Volts RMS Continuous |
| Dielectric Withstanding Voltage | 500 VRMS Max |
| VSWR (Return Loss) | |
|
DC - 4 GHz
|
1.25 (-19 dB) Max |
|
4 - 6 GHz
|
1.40 (-16 dB) Max |
| Insulation Resistance | 500 MΩ Min |
| Center Contact Resistance | 10 mΩ Max |
| Outer Contact Resistance | 5 mΩ Max |
| Insertion Loss | .1 √(f(GHz)) dB Max |
| Power Handling | 63 W Max @ 1 GHz |
Environmental
| Temperature Range | −40°C to +90°C |
| Thermal Shock | MIL-STD-202, Method 107 |
| Corrosion | MIL-STD-202, Method 101 (Test Condition B) - 5% Salt Solution |
| Vibration | CECC 22000 4.6.3 |
| Mechanical Shock | MIL-STD-202, Method 213, Condition B |
| Moisture Resistance | MIL-STD-202, Method 103, Condition B |
Mechanical
| Mating Cycles | 500 Min |
| Coupling Mechanism | Push-On |
| Interface Specification | CECC 22220 |
| Engagement Force | ≤ 30 N |
| Disengagement Force | > 8 N @ 1 - 5 Mating Cycles > 4 N @ 100 - 500 Mating Cycles |
Note: These characteristics are typical and may not apply to all connectors.
Connector configurations may affect performance.
Interface Dimensions
Plug
Jack
Related Resources
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Ensure environmental protection with IP67 BNC to microminiature MCX and MMCX cables
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Amphenol RF's MMCX Cable Assemblies provide broadband performance with low reflections, featuring quick connect/disconnect snap-on mating in a micro-miniature package size. These 50 ohm assemblies, available in various standard lengths, are ideal for applications such as broadband modules, Wi-Fi access points, GPS units, and antennas, offering reliable performance up to 6 GHz.
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The Amphenol RF MMCX cable assemblies datasheet outlines pre-configured 50-ohm RF cable solutions using flexible RG-174 coax for reliable connections in wireless communication modules. It highlights available connector configurations, electrical performance characteristics, and suitability for applications such as IoT, GPS, Wi-Fi, and other compact RF systems.
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