QMA M RA CRIMP for LMR240 Cable

Description

The QMA series is a quick-disconnect evolution of the SMA interface, specifically designed to enhance assembly speed and port density in modern wireless systems. This male (plug) variant features a 90-degree right-angle configuration, which is essential for optimizing cable management in shallow equipment racks and high-density panels. The right-angle orientation allows the cable to exit parallel to the equipment faceplate, significantly reducing mechanical stress and protecting the cable’s minimum bend radius in tight enclosures.

Specifically calibrated for LMR240 low-loss coaxial cable, this connector maintains a strict 50-Ohm impedance. LMR240 is a popular choice for installations requiring lower attenuation than standard 5mm cables, and this connector ensures those performance gains are preserved. It utilizes a professional dual-crimp termination system for both the center pin and the outer ferrule, ensuring a gas-tight mechanical bond. The QMA’s signature snap-on coupling mechanism allows for tool-free installation and 360-degree rotation after mating, which eliminates the risk of torque-related damage to the cable or the interface during deployment.

Key Technical Advantages

• Space-Saving 90° Integration: The low-profile right-angle body minimizes protrusion from the equipment panel, making it ideal for high-density layouts where rack depth is limited.

• LMR240 Low-Loss Optimization: Specifically designed to accommodate the larger dielectric and jacket dimensions of LMR240, ensuring a seamless electrical transition and minimal VSWR.

• Rapid Snap-On Efficiency: The tool-free “Quick-Lock” mechanism reduces installation time significantly compared to threaded SMA connectors, facilitating faster site builds and maintenance.

• 360° Rotational Stress Relief: Once mated, the connector can rotate freely, allowing for easier cable routing and preventing damaging torque from being transmitted to the connector’s internal components.

• High-Frequency Performance: Engineered to maintain signal integrity and high shielding effectiveness across a wide frequency range up to 6 GHz, suitable for 5G and WiFi-6 applications.

Key Features

• Interface Type: QMA Male (Plug) with 50-Ohm impedance.

• Orientation: 90° Right Angle for compact cable management.

• Coupling Mechanism: Snap-on (Quick-Lock) for rapid deployment.

• Termination Method: Dual-crimp (center pin and outer ferrule) for high-reliability mechanical bonding.

• Cable Compatibility: Optimized for LMR240 and equivalent 6mm low-loss coaxial cables.

Technical Summary