coax 1

Coax Contacts

Markets:
  • Avionics
  • C4ISR
  • Commercial Aircraft
  • Ground Systems & Vehicles
  • Military Aircraft
  • Missiles and Missile Defense
  • Naval
  • Space
  • Unmanned Systems

Product description

High-speed Coax contacts within a connector provide the shielding protection and in many cases, the RF/microwave performance needed in the circuitry of many applications. Amphenol® Shielded Contacts provide design versatility for electrical circuitry. Shielded contacts are used to eliminate interference from outside electrical sources when standard crimp or solder contacts are not enough. All popular series of Amphenol rectangular connectors are available with coax contacts. Diameters are standardized in sizes 4, 8, 12 and 16 so that coaxial contacts may be interchanged with power contacts in connector arrangements which include those sizes. Popular RG cable types and a variety of other commercial coaxial cables can be accommodated.

The use of coax contacts within a connector, compared to the use of individual coaxial/shielded connectors, offers advantages of savings in space and weight and no cross-mating difficulties. Coax and standard contacts may be mixed within the connector to meet special signal needs. The connector itself offers further protection and environmental integrity through the grommets and seals used, and the coaxial junction is protected by the connector outer shell.

Performance specifications:
Size 1 Socket and Pin (Crimp)Size 5 Socket and Pin (Crimp) Size 8 Socket & Pin (Crimp) 75 OhmSize 8 Socket & Pin (Crimp) 50 Ohm
Temperature Range:-65°C to +165°C-65°C to +185°C-65°C to +125°C-65°C to +125°C
Impedance:50 Ohms nominal50 Ohms nominal75 Ohms nominal50 Ohms nominal
Rated Voltage:1,000 Vrms at sea level325 Vrms at sea level325 Vrms at sea level325 Vrms at sea level
Frequency Range:0-8 GHz0-500 MHz
1500-1700 MHz		0-500 MHz0-500 MHz
VSWR:1.70:10-500 MHz VSWR 1-30: 1
1500-1700 MHz VSWR 1.50:1		1-30: 11-30: 1
Insertion Loss:0.3 dB 0.3 dB
Contact Resistance:
0.2 mΩ (body)1.0 mΩ (body)1.5 mΩ max (outer body)Outer body 12.0 Amp test current, 30 mΩ intial, 45 mΩ after test
1.0 mΩ (center)2.1 mΩ (center)10 mΩ max (center)Center contact 1.0 Amp test current, 15 mΩ intial, 30 mΩ after test
Insulation Resistance:5,000 megohms mininum5,000 megohms mininum5,000 megohms mininum5,000 megohms mininum
Dielectric Withstand Voltage(DWV):2,500 Vrms at sea level750 Vrms at sea level750 Vrms at sea level1,000 Vrms at sea level
Material specifications:
Size 1 Socket and Pin (Crimp)Size 5 Socket and Pin (Crimp)Size 8 Socket & Pin (Crimp) 75 OhmSize 8 Socket & Pin (Crimp) 50 Ohm
Body Components Brass 1/2 HD per QQ-B-626
Beryllium per QQ-C-530		Brass 1/2 HD per QQ-B-626
Beryllium per QQ-C-530		Beryllium copper per ASTM-B-196Copper alloy
Insulators:Per MIL-P 19468APer MIL-P 19468APTFE per ASTM-D-1710PTFE per ASTM-D-1710-99 or equivalent
Crimp Ferrule:Copper, annealedCopper, annealedBrass per QQ-B-626Copper alloy or brass per ASTM B-16
Center Contact: Brass per QQ-B-626Beryllium copper per ASTM-B-196 or copper alloy
Gaskets:Silicone rubber per ZZ-R-765 Silicone rubber per ZZ-R-765 Silicone rubber per ZZ-R-765
Plating:Gold per MIL-G-45204Gold per MIL-G-45204Gold per AMS per 2422, 50 microinches, minimum over 50 microinches nickel underplate per QQ-N-290Gold per AMS 2422, 50 microinches minimum over 50 microinches minimum nickel underplate per QQ-N-290