HD-AFI Adapters

Precision 75 Ω board‑to‑board and cable‑to‑board AFI adapters ensuring reliable high-frequency connections with generous blind‑mate alignment tolerance.

Overview

Amphenol RF’s HD‑AFI adapters convert HD-AFI interfaces to industry-standard RF connectors in both in-series and between-series formats, enabling seamless integration into board-to-board and board-to-cable designs. These compact adapters retain the high-performance characteristics of the HD-AFI family while extending connectivity to conventional interfaces.

Developed for rugged, flexible RF systems, HD‑AFI supports 75 Ω operations up to 18 GHz. The proprietary two-piece design provides significant radial (1.32 mm) and axial (2.0 mm) mating float, ideal for blind‑mate applications with tight tolerances. These adapters are available in inline jack‑to‑jack formats as well as between-series types like HD-BNC.

Features and Benefits
  • High-Frequency Performance – Supports 75 Ω connections up to 18 GHz in HD‑AFI format.
  • Blind-Mate Friendly – Offers ±1.32 mm radial and ±2.0 mm axial alignment tolerances for easy mating.
  • Flexible Configurations – Available in in-series HD-AFI and between-series adapters (e.g., HD-AFI to HD-BNC).
  • Compact Footprint – Ideal for space-limited board stacking and modular system layouts.
  • Connector Protection – In-series adapters serve as connector savers to extend board or cable longevity
Applications
  • Board-to-Board RF Systems – High-density HD‑AFI interconnects for modular electronics.
  • Blind-Mate Modules – Ideal for systems requiring board replacement or docking.
  • Test & RF Instrumentation – Enables consistent signal path alignment over repeated mating cycles.
  • Hybrid Cable‑to‑Board Connections – Between-series adapters (e.g., HD-AFI to HD-BNC) allow integration with external RF systems.

All HD-AFI Adapter Categories

Related Resources

The Amphenol HD-AFI series is a compact, high-density RF board-to-board interconnect solution designed for demanding applications requiring reliable, high-frequency signal transmission up to 12 GHz. With a robust push-on, closed-entry design, multiple stack height options, and industry-leading float tolerance, it’s ideal for telecommunications, networking, IoT, automotive, and test equipment. The series ensures strong signal integrity in tight spaces and offers high durability with up to 200 mating cycles.
Amphenol RF HD-AFI Product Series Solutions Guide
The Amphenol HD-AFI series is a compact, high-density RF board-to-board interconnect solution designed for demanding applications requiring reliable, high-frequency signal transmission up to 12 GHz. With a robust push-on, closed-entry design, multiple stack height options, and industry-leading float tolerance, it’s ideal for telecommunications, networking, IoT, automotive, and test equipment. The series ensures strong signal integrity in tight spaces and offers high durability with up to 200 mating cycles.
Read More
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.
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.
Read More
Amphenol RF offers a cutting-edge range of board-to-board RF connectors, designed for seamless high-frequency signal transmission. These connectors are essential for applications in 5G, IoT, automotive, aerospace, and industrial automation, ensuring reliable and high-performance connectivity in compact designs.

🔹 Key Benefits:
✔️ High-frequency performance
✔️ Secure and durable connections
✔️ Compact & versatile for modern PCB designs

Watch this short to see how Amphenol RF’s board-to-board connectors optimize signal integrity across industries!

📌 Learn more: https://www.amphenolrf.com/board-to-board-rf-connectors
🔔 Subscribe for more RF solutions! #AmphenolRF #RFConnectors #PCBDesign #5G #IoT
Amphenol RF Board-to-Board Connectors: Reliable High-Frequency Solutions!
Amphenol RF offers a cutting-edge range of board-to-board RF connectors, designed for seamless high-frequency signal transmission. These connectors are essential for applications in 5G, IoT, automotive, aerospace, and industrial automation, ensuring reliable and high-performance connectivity in compact designs. 🔹 Key Benefits: ✔️ High-frequency performance ✔️ Secure and durable connections ✔️ Compact & versatile for modern PCB designs Watch this short to see how Amphenol RF’s board-to-board connectors optimize signal integrity across industries! 📌 Learn more: https://www.amphenolrf.com/board-to-board-rf-connectors 🔔 Subscribe for more RF solutions! #AmphenolRF #RFConnectors #PCBDesign #5G #IoT
Watch Video
Learn more about Amphenol RF's board-to-board and automotive solutions with Amphenol RF Asia product manager, Isabella Zhang.

Board-to-board solutions: https://www.amphenolrf.com/board-to-board-rf-connectors
Automotive Solutions: https://www.amphenolrf.com/automotive

Check us out on social media:
https://www.facebook.com/officialAmphenolRF 
https://www.linkedin.com/company/amphenol-rf/mycompany/ 
https://www.twitter.com/AmphenolRF

Our Website:
https://www.amphenolrf.com
Amphenol RF Technical Demonstration Series: Board-to-Board and Automotive Solutions
Learn more about Amphenol RF's board-to-board and automotive solutions with Amphenol RF Asia product manager, Isabella Zhang. Board-to-board solutions: https://www.amphenolrf.com/board-to-board-rf-connectors Automotive Solutions: https://www.amphenolrf.com/automotive Check us out on social media: https://www.facebook.com/officialAmphenolRF https://www.linkedin.com/company/amphenol-rf/mycompany/ https://www.twitter.com/AmphenolRF Our Website: https://www.amphenolrf.com
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