HD-EFI Connectors

Amphenol RF’s HD‑EFI connectors are precision-engineered for compact, multi-layer PCB interconnections requiring alignment tolerance and high-frequency performance. Designed with generous axial and radial “float,” they support blind mating and accommodate board-to-board spacing variations—ideal for modular wireless systems and densely packed electronics.

With reliable RF performance up to 6 GHz and compact push-on contact geometry, HD‑EFI ensures stable signal integrity across multiple mating cycles. Available in common PCB jack and cable plug formats, plus bullet adapters for flexible board stack-ups, this series is perfect for broadband routers, military/aerospace gear, and telecom infrastructure.

Features and Benefits

• High float tolerance: ±0.7 mm axial and ±0.3 mm radial misalignment support error-prone assembly conditions.
• Blind-mate capability with crash-proof, closed-entry design protects contacts during mating.
• Compact and modular: micro-miniature interface supports multiple RF lines on small PCB real estate.
• 50 Ω performance to 6 GHz ensures broadband communication quality.
• Variety of formats: PCB jacks, cable plugs, and bullet adapters for stack flexibility.

Key Technical Details

• Impedance: 50 Ω nominal (broadband systems)
• Frequency Range: DC–6 GHz, with consistent performance across blind-mate range
• Voltage Rating: 335 VRMS continuous, up to 1 000 VRMS dielectric withstand
• Coupling Mechanism: push-on blind-mate, crash-resistant contacts
• Mechanical Float: ±0.7 mm axial / ±0.3 mm radial to handle PCB variances

Applications

• Modular telecom and broadband routers
• Military and aerospace communication modules
• Multi-network PCB stacks in instrumentation and medical systems
• Vehicle and defense wireless board-to-board assemblies
• Compact RF systems with strict alignment tolerances

Browse our HD‑EFI series including surface-mount PCB jacks, right-angle cable plugs, and an assortment of bullet adapters for precise stack-up configurations. For custom board spacing tolerances, cable-to-board transitions, or tailored integrated solutions, contact our engineering team to design a fit-for-purpose interface.