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Amphenol RF HD-EFI Product Series

The HD-EFI product series from Amphenol RF is a micro-miniature interface designed to allow large board tolerance stack ups, blind mating, and multiple RF lines. This is achieved by maximizing radial and axial float while maintaining high frequency RF performance.

These 50 ohm products have an operating frequency of DC to 6 GHz, making them ideal for high-performance applications with a small package size. The selection of PCB mounts and bullet lengths offer versatility for board launches and PCB stacking configurations.

HD-EFI bullet adapters are uniquely designed to provide a crash-proof mating, facilitated by the extension of the insulator beyond the adapter body. Used in conjunction with the smooth bore connectors, the mating system allows for easy alignment and secure connection.

Features & Benefits

  • Designed to maximize radial and axial float in board-to-board applications
  • Available in through-hole, surface mount, and edge launch configurations
  • Provides crash-proof mating


  • Computer / Datacom / Telecommunications


  • Wireless base station equipment
  • Backplane design
  • Multiple board to board connections
  • Complex PCB stack-ups

Product Spec Sheets and Additional Information

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