The SMA female 4-hole flange mount RF connector<\/strong> with a 1.27 mm pin and 8.63 mm hole spacing is a precision-built component designed for solder attachment<\/strong> in compact and high-reliability RF systems. Operating from DC to 18 GHz with a 50 \u03a9 impedance<\/strong>, it ensures outstanding electrical stability and consistent mechanical alignment across a wide frequency range.<\/p>\n Featuring VSWR \u2264 1.08<\/strong> and insertion loss \u2264 0.06 \u221aF(GHz) dB<\/strong>, the SMA-KFD40E flange-mount connector<\/strong> 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.<\/p>\n Machined from stainless steel with a gold-plated beryllium-copper contact, the SMA-KFD40E RF connector<\/strong> combines corrosion resistance, mechanical durability, and long-term electrical reliability. It fully meets REACH and RoHS compliance<\/strong> standards, making it suitable for aerospace, defense, and telecom environments.<\/p>\n The 8.63 mm 4-hole flange mount design<\/a> 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.<\/p>\n Mechanc\u2019s SMA RF connector<\/a> 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<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":" SMA Female 4-Hole Flange Mount RF Connector \u2013 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 \u03a9 impedance, 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Electrical Performance<\/h3>\n
Materials and Compliance<\/h3>\n
Mechanical Design and Application Range<\/h3>\n
Explore SMA Connector Options<\/h3>\n