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Amphenol Aerospace

Triax Contacts

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  • Incorporates three conductors, designed for use with triax cable
  • Each of the three conductors are separated by dielectric insulation to isolate ground planes
  • Shielding effectiveness improved with two isolated shields
  • May be specified for direct connection to printed circuit boards
  • May be mixed with coax, twinax and power contacts in a single connector
Size 8, 10 and 12 Triax Contacts Electrical Performance
  • Contact Resistance:
    • Center @ 1 Amp, 120 millivolts max. voltage drop @ 25ºC
    • Intermediate @ 1 Amp, 60 millivolts max. voltage drop @ 25ºC
    • Outer @ 1 Amp, 90 millivolts max. voltage drop @ 25ºC
  • Operating Frequency:
    • Size 12: 0-30 MHz
    • Size 10: 0-300 MHz
    • Size 8: 0-500 MHz
  • Dielectric Withstanding Voltage:
    • Center to Intermediate 800 VAC Rms @ sea level
    • Intermediate to Outer 500 VAC Rms @ sea level
  • Insulation Resistance:
    • 1000 megohms minimum @ 25ºC


Amphenol Triax Contacts provide additional shielding when terminated to triax cable having solid or stranded center conductors. Amphenol supplies triax contacts in sizes 8, 10 and 12 and they are ideally suited for use in D38999 Series l, II, and III cylindrical connectors.


NEW 2010 - High Speed Contacts -Section of 12-C3

New "Split-Pair" Quadrax Contacts for MIL-DTL-38999, Series 111 - PDS-219

NEW 2010 - Printed Circuit Board - Section of 12-C3

Micro D-Twinax Transition Adapters-PDS-215

HF38999 High Frequency Contact - Catalog SL-400

Amphenol Press Fit Connectors for Printed Circuit Boards Applications

High Speed/High Frequency Contacts - Catalog 12-130

NEW 2010 Circular Interconnects Catalog - All sections - 12-C3


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