SMA Female 4-Hole Flange Mount RF Connector – Solder Attachment, 8.64mm Hole Spacing, 1.27mm Pin Diameter, Stub Terminal

SMA Female 4-Hole Flange Mount RF Connector – Solder Attachment, Model SMA-KFD-S1

The SMA female 4-hole flange mount RF connector with 1.27 mm pin and 8.64 mm hole spacing is designed for solder attachment in compact RF systems requiring stable and repeatable performance. Operating from DC to 18 GHz at 50 Ω impedance, the SMA-KFD-S1 provides reliable electrical connection and mechanical rigidity in high-frequency environments.

Electrical Performance

Featuring VSWR ≤ 1.08 and insertion loss ≤ 0.06 √F(GHz) dB, the SMA-KFD-S1 connector minimizes reflection and transmission losses while ensuring phase stability across broadband applications. The precisely machined 1.27 mm pin guarantees consistent signal integrity in measurement and communication systems.

Material Quality and Durability

Constructed from corrosion-resistant stainless steel with gold-plated beryllium copper contacts, the SMA-KFD-S1 RF connector combines high conductivity with excellent mechanical endurance. All materials conform to RoHS and REACH compliance standards, ensuring both performance and environmental responsibility.

Mounting and Applications

The 4-hole flange mount design provides secure panel installation and precise connector alignment in amplifiers, transceivers, and microwave modules. Its solder attachment interface delivers a vibration-resistant connection ideal for demanding RF systems.

Explore More SMA Solutions

Mechanc’s SMA connector series includes flange-mount, cable-mount, and bulkhead designs for DC–18 GHz systems. Visit our RF Connector Catalog to find complementary components for your next high-frequency project.