1.85mm Female 4-Hole Flange Mount RF Connector – Field Replaceable, 6.35mm Hole Spacing, 0.23mm Pin Diameter

1.85mm Female 4-Hole Flange Mount RF Connector – Field Replaceable, Model 1.85-KFD3

The 1.85 mm female 4-hole flange mount RF connector with 6.35 mm hole spacing and a 0.23 mm pin diameter provides exceptional electrical precision and mechanical reliability for broadband test and measurement systems. Operating from DC to 67 GHz with a 50 Ω impedance, the 1.85-KFD3 is designed for metrology-grade performance and repeatable connections in high-frequency applications. View the full selection of RF connectors by Mechanc.

Electrical Performance and Impedance Control

The 1.85-KFD3 RF connector ensures VSWR ≤ 1.2 and insertion loss ≤ 0.06 √F(GHz) dB, providing excellent return-loss characteristics and stable phase response across its entire frequency range. The precision-machined 1.85 mm interface minimizes signal reflection, guaranteeing high measurement accuracy in analyzers, calibration systems, and network modules. Learn more about Mechanc’s 1.85 mm connectors.

Mechanical Durability and Material Integrity

Constructed from passivated stainless steel with gold-plated beryllium copper contacts, the 1.85-KFD3 connector offers both conductivity and structural endurance. Each component is precisely machined to maintain concentric alignment and ensure consistent impedance through repeated mating cycles. All materials are fully RoHS and REACH compliant. See our range of field-replaceable connectors.

Flange Geometry and Mounting Stability

The 4-hole flange mount design with 6.35 mm hole spacing enables secure panel installation and precise reference-plane positioning. Its compact geometry provides high mechanical stability while minimizing stress on solder joints and flange screws, making it ideal for precision modules and instrument front-ends.

Applications and Engineering Flexibility

The 1.85-KFD3 4-hole flange mount RF connector is widely used in vector network analyzers, calibration standards, and frequency-extension systems where accuracy and longevity are essential. Mechanc supports customization options such as alternative flange dimensions, plating variations, and non-magnetic materials tailored to customer specifications.

For the corresponding male interface, see the mirror part: 1.85 mm Male 4-Hole Flange RF Connector – 0.23 mm Pin Diameter, Model 1.85-JFD3.