QMA F PCB MOUNT SOLDER

Description

The QMA series is an advanced, quick-disconnect evolution of the SMA interface, specifically designed to increase port density and assembly speed in modern RF systems. This female (jack) variant features a through-hole solder mount configuration, allowing for a robust mechanical and electrical connection directly to the PCB. The QMA interface utilizes a snap-on coupling mechanism instead of a traditional threaded nut, which not only accelerates the assembly process but also permits 360-degree rotation of the mated cable, significantly reducing mechanical torque on the PCB solder joints.

Maintaining a strict 50-Ohm impedance, this connector provides excellent electrical performance up to 6 GHz, supporting high-speed data transmission for LTE, 5G, and WiFi-6 applications. The housing is precision-machined from gold-plated brass, providing superior conductivity and solderability. With its compact footprint and lack of a bulky coupling nut, this PCB-mounted QMA jack allows for much tighter inter-connector spacing on circuit boards compared to standard SMA alternatives, making it the industry standard for high-port-count RF routing.

Key Technical Advantages

• Optimized for High-Density Layouts: The snap-on design eliminates the need for torque wrench clearance, allowing connectors to be placed closer together on the PCB surface.

• Rapid Snap-On Efficiency: Dramatically reduces testing and assembly time by providing a tool-free mating system that is up to 10 times faster than threaded interfaces.

• 360° Rotational Stress Relief: Once mated, the plug can rotate freely, ensuring that cable movement does not transmit damaging torque to the PCB or the solder pads.

• Superior Signal Integrity: Engineered to maintain low VSWR and high shielding effectiveness across a wide frequency range up to 6 GHz.

• Robust PCB Integration: Through-hole mounting pins provide excellent mechanical shear strength, ensuring the connector remains stable during repeated mating cycles.

Key Features

• Interface Type: QMA Female (Jack) with 50-Ohm impedance.

• Mounting Type: Straight / Vertical PCB Through-Hole Solder Mount.

• Coupling Mechanism: Snap-on (Quick-Lock) for rapid, secure mating.

• Premium Construction: Features a gold-plated brass body and a high-performance PTFE dielectric.

• Industrial Application: Ideal for cellular base stations, RF testing equipment, small cells, and modular wireless hardware.

Technical Summary