1.85mm Female 4-Hole Flange Mount RF Connector – Field Replaceable, 6.35mm Hole Spacing, 0.30mm Pin Diameter

1.85mm Female 4-Hole Flange Mount RF Connector – Field Replaceable, Model 1.85-KFD4

The 1.85 mm female 4-hole flange mount RF connector with 6.35 mm hole spacing and a 0.30 mm pin diameter is designed for precision signal transmission in high-frequency instrumentation. Operating from DC to 67 GHz at 50 Ω impedance, the 1.85-KFD4 provides stable electrical characteristics and superior repeatability in advanced microwave measurement systems. Explore the full RF connector range from Mechanc.

High-Frequency Electrical Stability

The 1.85-KFD4 RF connector achieves VSWR ≤ 1.2 and insertion loss ≤ 0.06 √F(GHz) dB, ensuring minimal reflection and low signal degradation across the broadband spectrum. Its precision-machined 1.85 mm interface supports excellent phase stability and impedance uniformity for analyzers, frequency-extension heads, and metrology-grade calibration modules. Learn more about Mechanc’s 1.85 mm connectors.

Material Selection and Conductive Reliability

Constructed from passivated stainless steel with gold-plated beryllium copper contacts, the 1.85-KFD4 connector combines structural robustness with high conductivity. Controlled surface finishing ensures low contact resistance and long-term durability through thousands of connection cycles. Every unit is fully RoHS and REACH compliant. View our field-replaceable connectors for similar modular designs.

Flange Geometry and Installation Precision

The 4-hole flange mount design with 6.35 mm spacing delivers excellent mechanical balance and reference-plane consistency. Its compact geometry allows secure attachment on analyzer ports or panel interfaces, maintaining alignment accuracy under vibration and thermal stress during repetitive measurements.

Applications and Engineering Flexibility

The 1.85-KFD4 4-hole flange mount RF connector is used in broadband calibration systems, modular analyzers, and high-frequency instrumentation requiring repeatable, low-loss interfaces. Mechanc offers customizable configurations including flange dimension changes, alternative plating finishes, and non-magnetic alloys to meet specific design requirements.

For the corresponding male interface, see the mirror part: 1.85 mm Male 4-Hole Flange RF Connector – 0.30 mm Pin Diameter, Model 1.85-JFD4.