Series QMA RF Coaxial Connector is a high-performance, quick-disconnect RF connecting component developed based on SMA connectors, featuring a snap-on locking mechanism and compact structure. Compliant with relevant industry standards, it combines the excellent electrical performance of SMA connectors with more convenient installation, serving as a core interconnection part in high-frequency communication and test systems, widely used in scenarios requiring efficient and reliable mating.
The series boasts outstanding electrical performance tailored for practical applications. With a fixed characteristic impedance of 50Ω, it supports a working frequency range of DC to 6GHz (optimized) and up to 18GHz for the interface, perfectly adapting to base stations, GPS and test instrument needs. Key electrical parameters are reliable: VSWR is controlled within ≤1.13, contact resistance of inner conductor ≤3mΩ and outer conductor ≤2.5mΩ, insulation resistance ≥5000MΩ, and low RF leakage, ensuring stable and low-loss signal transmission.
Its unique advantage lies in the snap-on quick-connect design, which enables installation 10 times faster than threaded SMA connectors without the need for wrenches, greatly improving assembly efficiency. After mating, it can rotate 360 degrees, enhancing installation flexibility and avoiding cable torsion, while the dense packaging design reduces spacing between connectors to save PCB space. Manufactured with precision processes, it adopts brass housing (nickel or ternary alloy plated), beryllium copper or brass contacts (gold plated), and PTFE insulators, withstanding -55℃ to +155℃ working temperature and 200+ plugging cycles.
Widely applied in mobile communication base stations, antennas, GPS devices, test instruments and cable assemblies, it is a cost-effective, efficient solution for high-frequency RF interconnection. As communication equipment evolves towards miniaturization and high efficiency, it continues to provide reliable support for stable signal transmission.