HD-EFI Adapters
Compact HD‑EFI adapters delivering precision; blind‑mate 50 Ω RF connectivity in dense board-to-board and board-to-cable designs.
Overview
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Amphenol RF’s HD‑EFI adapters include both in-series HD‑EFI barrels and between-series transitions—like HD‑EFI to SMA—supporting flexible, high‑density RF integration. Optimized for minimal PCB space, these adapters are tailored for tight board-stack and mezzanine card layouts.
The HD‑EFI interface is a micro-miniature, three-piece connector designed for robust blind mating and misalignment compensation (±1.4 mm axial/radial float), accommodating board tolerance variances without compromising signal integrity. Rated for 50 Ω performance up to 6 GHz, it suits high-frequency designs in wireless, avionics, telecom, and defense equipment.
Features and Benefits
- High-Density Footprint – Ideal for compact PCB stacks and mezzanine configurations.
- Blind‑Mate Capability – ±1.4 mm radial and axial float with crash-proof bullet adapter ensures reliable mating.
- Versatile Configurations – Includes in-series barrels and between-series SMA interface adapters.
- Robust Signal Quality – Maintains stable RF performance across 6 GHz in a small, sturdy package.
- Connector Saver Role – In-series adapters protect on-board mating surfaces and cable connectors from wear over time.
Applications
- Wireless Base Stations & Telecom – Compact multi-line board-to-board RF paths in high-performance modules.
- Military & Aerospace – Blind-mate capable connectors in rugged defense electronics.
- Broadband Routers & Network Equipment – Efficient RF interconnects in stacked PCB designs.
- Test & Measurement – Between-series HD‑EFI to SMA adapters support lab-grade testing.
All HD-EFI Adapter Categories
Related Resources
HD-EFI product series expands with thread-in configurations
Amphenol RF is proud to announce the expansion of our HD-EFI product line, designed to satisfy the need for a compact RF interconnect solution.
HD-EFI Connector Series
The HD-EFI product series by Amphenol RF offers micro-miniature interfaces designed for high-performance applications with a frequency range from DC to 6 GHz. These 50 ohm products are ideal for board-to-board applications, featuring versatile PCB mounts and bullet lengths, and providing up to 1.4 mm axial and radial float. HD-EFI connectors are available in various configurations, including through-hole, surface mount, edge launch, and thread-in, and support blind mating with crash-proof designs.
Board-to-Board Solutions
Amphenol RF's board-to-board solutions provide high-performance interconnect options designed for seamless integration in various applications. These solutions ensure reliable connectivity between PCBs, optimizing space and maintaining signal integrity across different frequencies and environments. The product line includes a variety of connector configurations to meet specific design requirements, supporting a wide range of industries from telecommunications to industrial automation.
Amphenol RF HD-EFI Product Series Solutions Guide
The Amphenol RF HD-EFI Product Series Solutions Guide provides an overview of the high-density, board-to-board HD-EFI connector series. It details the compact design, high-frequency performance, and robust mechanical features that make these connectors ideal for automotive, industrial, and wireless applications.
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