These contacts are required for high frequency interconnection. High speed Coax contacts within a connector provide the shielding protection in order to eliminate interferences from outside electrical sources, and many cases the RF/Microwave performance needed in the circuitry of many applications.

 impedance matched 12# coaxial contact for MIL-DTL-38999 Series III 

MATCHED IMPEDANCE SIZE 12 COAXIAL CONTACTS FOR RF/MICROWAVE, HIGH FREQUENCY AND HIGH PERFORMANCE REQUIREMENTS

• Contact impedance = 50 ohms nominal

• Frequency range = 0–3 GHz Operable at higher frequencies depending on cable selection.

  Consult Amphenol for details.

• Dielectric withstanding voltage (for a mated pair):

  At sea level = 1000 VRMS

  At 50, 000 ft. = 250 VRMS

• Insulation resistance: 5 gigaohms min. @ 25°C

• VSWR: 1.20 + .04F (F in GHz) max. up to 3 GHz

• Insertion Loss: 0.11 fGHz dB max.

  Environmental Specifications:

• Thermal limits: –55 ° to 200°C

  Mechanical Specifications:

• Mating: slide-on

• Mounting: conforms to M39029/102 & /103 envelope dimensions