SMA 母头 4孔法兰安装射频连接器 – 焊接式，孔距 8.63mm，针径 1.27mm，短柱端子

SMA Female 4-Hole Flange Mount RF Connector – Solder Attachment, Model SMA-KFD40E

The SMA female 4-hole flange mount RF connector with a 1.27 mm pin and 8.63 mm hole spacing is a precision-built component designed for solder attachment in compact and high-reliability RF systems. Operating from DC to 18 GHz with a 50 Ω impedance, it ensures outstanding electrical stability and consistent mechanical alignment across a wide frequency range.

High-Stability Electrical Performance

Featuring VSWR ≤ 1.08 and insertion loss ≤ 0.06 √F(GHz) dB, the SMA-KFD40E flange-mount connector minimizes reflection and insertion losses, ensuring reliable power transfer and signal integrity. Its 1.27 mm center pin provides accurate mating and optimal conductivity for precision RF assemblies.

Materials and Compliance

Machined from stainless steel with a gold-plated beryllium-copper contact, the SMA-KFD40E RF connector combines corrosion resistance, mechanical durability, and long-term electrical reliability. It fully meets REACH and RoHS compliance standards, making it suitable for aerospace, defense, and telecom environments.

Mechanical Design and Application Range

The 8.63 mm 4-hole flange mount design enables secure installation on test fixtures, amplifiers, and microwave modules. Its solder attachment interface ensures a robust, vibration-resistant connection ideal for systems requiring precise RF performance.

Explore SMA Connector Options

Mechanc’s SMA RF connector range includes flange-mount, cable-mount, and field-replaceable designs optimized for performance and repeatability. For additional frequency-specific solutions, explore our complete RF Connector Catalog.