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

1.85mm Male 4-Hole Flange Mount RF Connector – Field Replaceable, Model 1.85-JFD4

The 1.85 mm male 4-hole flange mount RF connector with 6.35 mm hole spacing and a 0.30 mm pin diameter offers precision signal transmission and robust alignment for broadband measurement systems. Operating from DC to 67 GHz with a 50 Ω impedance, the 1.85-JFD4 ensures low-loss connectivity and consistent performance in microwave and millimeter-wave environments. Explore Mechanc’s complete RF connector portfolio.

Return Loss and Impedance Precision

The 1.85-JFD4 RF connector delivers VSWR ≤ 1.2 and insertion loss ≤ 0.06 √F(GHz) dB, providing excellent return-loss control and phase consistency throughout the 67 GHz range. Its precision 1.85 mm interface ensures stable contact alignment for repeatable calibration results and low reflection coefficients in analyzer and system-level testing. Learn more about our 1.85 mm connectors.

Material Integrity and Surface Finish

Manufactured from passivated stainless steel with a gold-plated beryllium copper contact, the 1.85-JFD4 connector combines durability with superior electrical conductivity. High-precision machining maintains contact concentricity and minimizes insertion loss during high-frequency operation. All materials are RoHS and REACH compliant, ensuring long-term reliability. Explore our field-replaceable connectors for additional designs.

Mounting Geometry and Mechanical Stability

The 4-hole flange mount configuration with 6.35 mm spacing enables precise alignment and firm installation on instrument panels or test modules. Its balanced design provides torque resistance and mechanical strength under vibration, ensuring repeatable reference-plane positioning during continuous test operations.

Applications and Custom Engineering Options

The 1.85-JFD4 4-hole flange mount RF connector is ideal for high-frequency analyzers, calibration fixtures, and metrology-grade instruments requiring repeatable, low-VSWR interfaces. Mechanc provides engineering customization, including alternate flange layouts, custom plating materials, and non-magnetic versions tailored for precision measurement systems.

For the corresponding female interface, see the mirror part: 1.85 mm Female 4-Hole Flange RF Connector – 0.30 mm Pin Diameter, Model 1.85-KFD4.