What is a MMCX RF Connector?
Summary
MMCX (Micro-Miniature Coaxial) RF connectors are ultra-compact connectors designed for Radio Frequency (RF) applications. Featuring a snap-on coupling mechanism, they allow for quick and easy connection and disconnection, making them ideal for devices that require frequent mating and unmating.
Smaller than MCX (Micro Coaxial) connectors, MMCX connectors are particularly suited for applications where space and weight are critical, such as in telecommunications (e.g., antennas and GPS systems), medical devices (e.g., portable equipment), and transportation (e.g., in-vehicle communication systems).
MMCX RF Connectors by Type
Micro Coaxial Cables
Trivia : About Cables
- MIL Standard Cables
These cables, also known as Mil-Spec, are engineered to meet rigorous US military specifications for performance and durability. They often feature the "RG" prefix, which stands for "Radio Guide," reflecting their roots in radio technology. They are critical in demanding applications like defense, aerospace, and telecommunications, where reliability is non-negotiable.
- Micro Coaxial Cables
These ultra-thin cables are designed to connect to miniature RF connectors like U.FL. They ensure signal integrity in space-constrained devices such as smartphones, laptops, and medical equipment, making them vital for modern compact electronics.
MMCX RF Connector Features
Ultra-Compact Size
Even smaller than MCX connectors, enabling mounting in limited space.
Coupling Method
Similar to the MCX connector, the snap-on coupling method is used, which allows easier coupling of connectors compared to the threaded coupling method. Since the connectors can be coupled by simply pushing them together, they are suitable for locations where space is limited.
MMCX RF Connector Applications
Our MMCX RF connectors are versatile, widely used in telecommunications, medical, and transportation due to their compact size and reliability.
Telecommunications: They excel in wireless devices like antennas and GPS modules, delivering high-frequency performance in tight spaces, ideal for Wi-Fi and Bluetooth applications.
Medical: Their miniature design suits portable devices such as hearing aids and diagnostic tools, ensuring reliable connections critical for patient care.
Transportation: Used in automotive GPS and aerospace avionics, they offer a lightweight, space-saving solution for navigation and communication systems.
These features make them essential across industries.
MMCX RF Connector Standards & Dimensions
Compatible Standards
BS EN 122340:2002
Impedance
50 Ω
Coupling Method (Connection)
Snap-on Coupling
Voltage Rating
AC 170 V
Maximum Voltage
DC 500 V
Insulation Resistance
1,000 mΩ min. at 500 V DC
Contact Resistance
Center 5.0 mΩ max.; Outer 2.5 mΩ max.
Material
Brass (brass), beryllium copper
Surface Treatment
Gold plating
Wiring Method
Solder, crimp
Note: The figures provided are typical values. For further details, please contact us.
MMCX Type RF Connector FAQ
QWhat is the difference between MCX connectors and MMCX connectors?
QWhat is the difference between MCX connectors and MMCX connectors?
MMCX connectors are smaller than MCX connectors, which are in turn smaller than SMB connectors. Their ultra-compact size makes MMCX ideal for applications where space and weight are critical.
> MCX
QWhat are the main applications for MMCX connectors?
QWhat are the main applications for MMCX connectors?
MMCX connectors are used in telecommunications, medical devices, transportation systems, and consumer electronics like GPS receivers and in-ear monitors.
QWhat is the frequency range of MMCX connectors?
QWhat is the frequency range of MMCX connectors?
MMCX connectors support frequencies from DC to 6 GHz, making them suitable for a wide range of RF applications.
QWhat is the typical impedance of MMCX connectors?
QWhat is the typical impedance of MMCX connectors?
MMCX connectors typically have a 50-ohm impedance, which aligns with most RF system standards.
QWhat types of coaxial cables are compatible with MMCX connectors?
QWhat types of coaxial cables are compatible with MMCX connectors?
MMCX connectors work with small coaxial cables such as our RG-316.
QWhat are the advantages of using MMCX connectors?
QWhat are the advantages of using MMCX connectors?
MMCX connectors are small, lightweight, and feature a snap-on design for quick, easy connections, perfect for space-limited applications.
QWhat are the limitations of MMCX connectors?
QWhat are the limitations of MMCX connectors?
Their small size makes MMCX connectors less suitable for high-power applications or rugged environments.
QHow should I connect and disconnect MMCX connectors to ensure their longevity?
QHow should I connect and disconnect MMCX connectors to ensure their longevity?
Push straight in to connect and pull straight out to disconnect without twisting, preserving the connector and cable integrity.
QHow can I order MMCX RF connectors, and what support do you offer?
QHow can I order MMCX RF connectors, and what support do you offer?
Ordering is simple—you can purchase our MMCX RF connectors directly on our website or contact our sales team for assistance. We also provide full technical support, including datasheets, CAD models, and application notes, to help you pick the perfect connector for your project.