SMA Female 4-Hole Flange Mount RF Connector – Solder Attachment, 8.64mm Hole Spacing, 0.4mm Pin Diameter, Stub Terminal

SMA Female 4-Hole Flange Mount RF Connector – Solder Attachment, Model SMA-KFD39

The SMA female 4-hole flange mount RF connector with a 0.4 mm pin and 8.64 mm hole spacing provides a robust solder attachment interface for precision RF systems. Operating from DC to 18 GHz at 50 Ω impedance, this connector ensures low-loss and stable signal transmission across a wide range of commercial and laboratory-grade applications.

Electrical Performance and Signal Stability

With VSWR ≤ 1.08 and insertion loss ≤ 0.06 √F(GHz) dB, the SMA female solder flange connector delivers excellent impedance matching and minimal reflection. The 0.4 mm center pin guarantees accurate alignment and consistent electrical performance in broadband circuits.

Material Quality and Compliance

Constructed from stainless steel with gold-plated beryllium copper contacts, the SMA female flange connector provides high conductivity, wear resistance, and durability under repeated connections. It is fully REACH and RoHS compliant, ensuring environmentally safe materials and long-term reliability.

Applications and Mounting Flexibility

The 8.64 mm 4-hole flange design supports easy installation in 4-hole flange mount RF assemblies used in amplifiers, communication analyzers, and precision test instruments. The solder attachment ensures a secure, vibration-resistant electrical interface.

Explore SMA Connector Solutions

Mechanc’s SMA RF connector series includes solder, crimp, and field-replaceable models engineered for optimal performance and mechanical reliability. Discover additional options in our RF Connector Catalog.