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MIL-DTL-38999 Quadrax/Twinax 

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MIL-DTL-38999 Quadrax/Twinax 
  • Data rates exceeding 2 Gbit/Sec
  • Bandwidth: Up to 3 GigaHertz
  • Can be driven via matched impedance differential pair interconnections for board to board high speed data transfer
  • Ideal for reliable, high-speed transfer of digital audio/video signals

Smiths Interconnect offers a complete line of differential Twinax and Quadrax  connectors, contacts and cable assemblies for high speed Ethernet, Firewire,  and Fibre Channel applications. Differential pair quadrax and twinax connectors and cable assemblies offer superior performance in high speed matched  impedance data-on-demand applications. The signal to signal and signal to shield characteristic impedance is maintained throughout the connector pair.  A true twinaxial connector interface ensures signal integrity while minimizing jitter and data rate errors. 

Mechanical & Environmental Specifications

Shell Style-65°C to + 125°C
Durability500 Mate/Unmate cycles min.
CorrosionMIL-STD-202 Method 101              
Test Condition B
ShockMIL-STD-202 Method 213    
Test Condition B
VibrationMIL-STD-202 Method 204 
Test Condition B
Thermal ShockMIL-STD-202 Method 107  
Test Condition B

 

Materials and Finishes

Shell & Inner ContactsBrass per ASTM-B16, Alloy UNS C36000
or BeCu per ASTM-B196, alloy UNS C17200, C17300
or Leaded Nickel Copper, alloy UNS C19500, C19600
Gold Plate per MIL-DTL-45204 Type II, Class 1
InsulatorsPTFE per ASTM-D1710 or ULTERM 1000

Connector Plug/
Receptacle Shell

Aluminum per ASTM-B211/221, 6061-T6
Electroless Nickel plate per SAE AMS-C-26074
or Cadmium plate per SAE AMS QQ-P-416
Gasket /SealSilicone Rubber per A-A-59588

 

Electrical

Contact Current Rating3.0 Amps max.
DWV500 VDC max
Insulation Resistance5.000 Mega Ohms min. @ 200 VDC
BandwidthUp to 3 Gigahertz.
Data RatesExceeding 2 Gbits/sec
Differential Pair Cable Impedance150 Ohm + 15 Ohm
100 Ohm + 10 Ohms
Signal to Shield Cable Impedance75 Ohm + 10 Ohm
50 Ohm + 7 Ohms

All specifications are subject to change without notice

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