Description
The SMA Female to MCX Male Adapter is a specialized “between-series” RF component designed to provide a high-reliability transition between the ubiquitous threaded SMA standard and the compact MCX interface. It features an SMA Jack (Female) on one side, utilizing the standard fine-threaded external interface and internal socket, and an MCX Plug (Male) on the other, featuring the precision snap-on coupling mechanism and center pin characteristic of the MCX series.
This adapter is indispensable for engineers and technicians who need to interface standard SMA-terminated cables or antennas with space-constrained hardware, such as GPS modules, wireless routers, and high-density telecommunications equipment. The MCX interface offers a 30% reduction in size compared to the SMB series, making it ideal for applications where PCB real estate is at a premium. Precision-machined to ensure a constant 50 Ohm impedance, it is constructed with a durable gold or nickel-plated brass body and PTFE (Teflon) insulation, maintaining exceptional signal integrity and low VSWR up to 6 GHz.
Key Technical Advantages
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Micro-Miniature Integration: Enables the direct connection of standard SMA cables to compact MCX equipment, bridging the gap between bench-top testing and miniature internal hardware.
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Rapid Snap-On Coupling: The MCX male interface features a secure snap-on design that allows for quick mating and 360-degree rotation after connection for easy cable routing.
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Space-Saving Design: The compact footprint is specifically engineered for high-density applications where traditional threaded connectors are too large for the available space.
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Superior RF Shielding: The precision-machined housing provides a continuous ground path, ensuring excellent protection against EMI and RFI interference in sensitive wireless systems.
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Maximum Conductivity: High-purity gold plating on the internal center contact socket and pin ensures ultra-low contact resistance and superior protection against oxidation.
Key Features
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SMA Female to MCX Male Interface: Consists of an SMA Jack (with socket and external threads) and an MCX Plug (with center pin and snap-on locking mechanism).
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Gold or Nickel-Plated Brass Construction: Offers superior electrical conductivity and professional-grade durability for industrial and telecommunications environments.
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Premium PTFE Dielectric: Provides high thermal stability and maintains a constant dielectric constant across its operating frequency range.
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Standard 50 Ohm Impedance: Specifically engineered to match standard high-performance wireless communication and microwave test instrumentation.
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Reliable Retention: The MCX interface is designed to maintain a secure electrical connection even when subjected to vibration or mechanical movement.
Technical Summary
| Parameter | Specification |
| Frequency Range | DC ~ 6 GHz |
| Impedance | 50 O |
| Body Material | Brass (Gold or Nickel Plated) |
| Insulator | PTFE (Teflon) |
| Contact Material | Beryllium Copper / Brass (Gold Plated) |
| Mating Cycles | = 500 |









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