Series BMA RF Coaxial Connector, short for Blind-Mate A connector, is a high-performance precision RF connecting component featuring a slide-on blind-mate design and air dielectric structure. Compliant with GJB681A, MIL-STD-348A and IEC 61169-33 standards, it is widely recognized for its reliable performance and convenient mating, serving as a core interconnection part in high-frequency modular systems, bridging the gap between high-density installation and stable signal transmission.
The series boasts outstanding electrical performance tailored for high-frequency scenarios. With a fixed characteristic impedance of 50Ω, it supports a working frequency range of DC to 18GHz (up to 22GHz for enhanced models), perfectly adapting to microwave, telecommunications and test & measurement needs. Key electrical parameters are superior: VSWR is controlled within ≤1.3, contact resistance of inner and outer conductors ≤2.0mΩ, insulation resistance ≥5000MΩ, and insertion loss is extremely low, ensuring minimal signal attenuation and distortion.
Its unique advantage lies in the blind-mate design, which enables quick and reliable connections without visual alignment, while the spring-loaded outer conductor compensates for axial and radial misalignment, reducing stress on PCBs and components. Manufactured with precision processes, it adopts brass housing (nickel-plated), beryllium copper or brass contacts (gold-plated), and PTFE insulators, enhancing conductivity and corrosion resistance. It can withstand -65℃ to +165℃ working temperature, 500+ plugging cycles, and harsh conditions like vibration and salt fog.
Widely applied in radar chassis, communication base stations, test instruments, aerospace equipment and high-density modular systems, it is especially suitable for rack-and-panel and PCB blind-mate connections. As high-frequency and modular equipment evolves, it remains a reliable, cost-effective solution for high-performance RF interconnection, empowering the advancement of microwave and communication technologies.