Cross RF offeres precision grade K connecotrs coverage up to 40 Ghz, aka 2.92 mm or 2.9 mm. Compatible with SMA and 3.5 mm connectors.

Requirement MIL-C-39012 Specification
ELECTRICAL DATA
Impedance 50Ω
Frequency range DC ~ 40GHz
Dielectric withstanding voltage (at sea level @ 50Hz) 750 Vrms
Working voltage (at sea level @ 50Hz) Less than 250 Vrms
Contact resistance 3-16 Center contacts : 3.0 mΩ
Outer contacts : 2.0 mΩ
Insulation resistance 3-11 5000MΩmin.
V.S.W.R 3-14 Max 1.40 @ 40 Ghz
RF leakage 3-26 -100dB-f(GHz)dB
MECHANICAL DATA
Coupling nut torque 7.1 ~ 9.7 in.-lbs
Coupling proof torque 3-25 15in.-lbs
Life 3-15 500 matings.
Contact captivation 3-14 ≥ 6.1 lbs
ENVIRONMENTAL DATA
Temperature range -55℃~+125℃
Corrosion resistance 3-13 MIL-STD-202, Method 101,Condition B.
Moisture resistance 3-21 MIL-STD-202, Method 106.
Thermal shock 3-20 MIL-STD-202, Method 107,Condition B.
Vibration 3-18 MIL-STD-202. Method 204,Condition D.
Shock 3-19 MIL-STD-202. Method 213,Condition I.
MATERIALS
Bodies Brass or stainless steel
Female contacts Beryllium copper
Insulators PTFE Teflon
Gasket Silicone Rubber
PLATINGS
Bodies Gold plated or passivated
Center contacts Gold plated

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