Description
The MCX (Micro Coaxial) Female PCB Mount connector is an ultra-miniature RF interface designed for 50 Ohm systems where vertical space and signal precision are critical. This variant is specifically designed for through-hole soldering and features integrated stand-offs (bosses) on the base of the connector body. These stand-offs serve two primary functions: they provide a consistent gap for thorough cleaning of solder flux and they ensure the connector sits perfectly level on the PCB surface for superior mechanical alignment.
The connector features a Gold-Plated Brass body and a high-retention center contact to ensure maximum electrical conductivity and a low-resistance signal path. The snap-on coupling mechanism allows for quick, tool-less mating with MCX male plugs and supports 360-degree rotation, which reduces mechanical stress on the PCB solder joints during cable routing. Optimized for performance from DC to 6GHz, this connector is a “workhorse” for modern wireless infrastructure, providing a reliable bridge between internal PCB traces and external antenna systems or test points.
Key Technical Advantages
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Integrated PCB Stand-offs: The built-in bosses ensure the connector body is elevated slightly above the board, allowing for better solder wetting, easier post-solder inspection, and effective flux removal.
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Ultra-Miniature Footprint: The compact MCX design allows for high-density placement on congested circuit boards where standard SMB or SMA connectors would occupy too much real estate.
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Snap-On Convenience: The tool-less mating interface facilitates rapid assembly and maintenance in high-volume production environments.
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Gold-Plated Precision: Heavy gold plating on the body and contact surfaces ensures a high number of mating cycles and provides exceptional resistance to oxidation.
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Robust Through-Hole Mounting: The four-leg (quad-leg) mounting configuration provides superior structural integrity and pull-strength compared to surface-mount alternatives.
Key Features
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Connector Type: MCX Female (Jack/Socket).
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Interface Standard: IEC 61169-36.
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Mounting Type: Through-Hole Solder with Stand-offs.
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Impedance: 50 Ohm.
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Body Material: Brass (Gold Plated).
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Contact Material: Beryllium Copper or Phosphor Bronze (Gold Plated).
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Common Applications: Wireless LAN access points, GPS receivers, cellular base station modules, and portable RF test equipment.
Technical Summary
| Parameter | Specification (Typical) |
| Impedance | 50 Ohm |
| Frequency Range | DC to 6 GHz |
| Working Voltage | 335 V RMS |
| Dielectric Withstanding | 750 V RMS |
| VSWR | ≤ 1.25 @ 3 GHz |
| Mating Cycles | ≥ 500 Cycles |





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