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MCX Type RF Connectors

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MCX (Micro Coaxial Connectors) are small snap-on type rf connectors approximately 30% smaller than SMB type, enabling compact, space-saving mounting. They are used in communication systems, GPS, medical equipment, and vehicle antennas.

Some MCX,MMCX type RF connectors are available for purchase from Digi-Key.

No cables with MCX connectors are available in stock.

Trivia: About Cables

JIS Standard
Japanese Industrial Standards (JIS) compliant cables. The higher the number of the part number, the thicker the cable. "D: 50Ω" and "C: 75Ω" represent the impedance.
MIL Standard
Compliant with US military standards for cables. Begins with the initials "RG" and is also called Mil-Spec.

Since this connector is smaller than the SMB connector, high-density mounting can be achieved in a small space, not only for wiring in equipment but also for connection between subassemblies that make up the equipment and between equipment.

Compared to the threaded coupling method, the snap-on coupling method is used, making connection easier. Since the connectors can be coupled by simply pushing the connectors together, this method is suitable for locations where tightening screws is difficult and space is limited.

MCX connectors are also available in 75 Ω as well. MCX 75 Ω connectors are recommended for video, broadcasting, home appliances, and factory automation equipment with lower operating frequency bands.


Communication systems, GPS, medical equipment, automotive antennas, etc.


Note: The figures provided are typical values. For further details, please contact us.

Compatible Standards IEC61169-36
Characteristic Impedance 50 Ω, 75 Ω
Coupling Method (Connection) Snap-on Coupling
Voltage Rating AC 170 V
Maximum Voltage Rating
DC 1,000 V
Insulation Resistance 1,000 M Ω min. at 500 V DC
Contact Resistance Center 5.0 mΩ max.; outer 2.5 mΩ max.
Material Brass, beryllium copper
Surface Treatment/td> Gold plating
Wiring Method Solder, crimp

Talk to our Connector Experts

To-conne talk to to-conne experts

We can quickly provide you with the ideal coaxial connectors for your requirements. We welcome small lot orders. To get started, please send us details of your needs, and one of our experts will get back to you shortly.

Tel. +81-3-3939-9161

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