What are 1.85 mm Connectors?

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Editorial Team - everything RF

Aug 13, 2019

The 1.85mm connector is a coaxial connector that provides mode free operation up to 67 GHz. The 1.85mm connectors have an M7 threads and are mechanically compatible with 2.4 mm connectors. They are called as the "V connectors" as they cover the V-band frequency. The design was introduced as an open standard under the IEEE 287 Precision Connector Standards Committee.

These connectors were developed primarily by Hewlett Packard at the 1986 European Microwave Conference.

The 1.85mm connectors are used in a wide range of applications including Military, Aerospace, SATCOM, Test & Measurement etc.

Key Features:

  • Operation from DC to 67 GHz
  • Impedance: 50 Ω
  • Compatible with 2.4mm Connector Series
  • Dielectric: Air
  • Ruggedized Construction for Repeatability and Reliability
  • Low VSWR:
    • DC to 27.0 GHz …........1.10:1 max
    • 27.0 to 40.0 GHz ……...1.15:1 max
    • 40.0 to 50.0 GHz ……...1.18:1 max
    • 50.0 to 67.0 GHz ……...1.25:1 max
  • Low RF Leakage and Shielding Effectiveness ≥ -100 dB
  • Low Insertion Loss
  • Outer conductor diameter: 1.85 mm
  • Recommended torque value: 8 lb. inches / 90 N cm
  • Environmental: Temperature: -55° C to +165° C
  • Coupling Mechanism: Screw-on Coupling
  • Interface Standards: IEEE 287-2007