Quadrax & Differential Twinax Connectors
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Quadrax/ Differential Twinax for MIL-DTL-38999 Connectors

Quadrax-recept ground-plane-clipAmphenol Connectors are ideally suited for the incorporation of shielded contacts for high performance interconnection applications. The circular family is built around MIL-DTL-38999 specifications, with Mil-approved and commercial styles offered. Normal operating voltage for circulars with power contacts only is up to 900 VAC (RMS) at sea level.

The MIL-DTL-38999 family offers these features for contact termination flexibility:

  • Widest selection of insert arrangements that can incorporate:
  • Size 8 high speed Quadrax and Differential Twinax contacts for MIL-DTL-38999 Series III (specially modified to accommodate keyed contacts)
  • Transition adapters for use in attaching D38999 Series III connectors with high speed quadrax or differential contacts to PCB boards
  • Wide selection of connector shell styles and sizes
  • Scoop-proof recessed design in LJT-R, TV-R and SJT-R connectors provide protection for contacts

High Speed Protocol Guide

* Requires modified connector to accommodate keyed contacts.

Contact: High Speed

Sandra Wildenstein



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NEW! High Speed Contacts Guide

The NEW High Speed Contact Guide is easy to use and now your can sort by size, cable, impedance, series and type for a part number and termination instructions.

Termination Service Instructions

Contact Us

Amphenol Aerospace
40-60 Delaware Avenue
Sidney, NY 13838-1395



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