Reducing Adapters

Reducing adapters provide a convenient, high-performance means to transition between different connector interfaces or sizes—whether to mate a smaller connector into a larger jack or vice versa. At Amphenol RF, our reducing adapters are available in both in-series and between-series configurations, covering a wide array of RF connector types and optimized for minimal insertion loss and impedance continuity.

These adapters help you handle connector mismatches without redesigning cable runs, enabling greater flexibility in system upgrades or interconnect retrofits. Whether you need to adapt between coaxial connectors in lab instrumentation, telecom systems, or broadcast equipment, our reducing adapters maintain signal integrity across transitions.

Features and Benefits

• Low insertion loss and optimized performance — designed to keep signal degradation to a minimum across transitions
• High compatibility with Amphenol RF connectors — engineered to mate properly with our connector families for seamless integration
• Compact, field-usable form — small footprint allows use in dense or constrained layouts without significant spacing penalty
• Durable mechanical design — robust mechanical coupling and materials suited for repeated use and environmental stress

Key Technical Details

• Frequency range
  The usable frequency range depends on the connector interface being reduced; the adapter is designed to avoid interfering with the nominal operating band (actual limit governed by connector, cable, and adapter geometry)
• Mating cycles
  Many reducing adapters are rated for several hundred mating cycles under proper conditions (varies by interface type and mechanical design)
• Temperature range
  Typical service envelope is around –65 °C to +165 °C (actual limits may depend on plating, insulator materials, and the specific connector interface)
• Special features
  Compact geometry, minimal profile transitions, high durability, EMI shielding continuity (where applicable), corrosion-resistant plating

Applications

Reducing adapters serve critical roles in diverse RF systems where interface compatibility and flexibility are essential:

• Test and measurement systems requiring adapters between coaxial test ports
• Retrofits or upgrades in existing telecom and broadcast systems
• Equipment interconnects where mismatched connector types exist
• Laboratory or bench systems where frequent reconfiguration is needed
• Broadcast, wireless, instrumentation, and communication systems where connector standardization is challenged
• Field installations where changing the cable is impractical but connector adaptation is needed

Explore our available reducing adapter portfolio in the reducing adapters product section. If your system requires a custom reducing geometry, special impedance, or mechanical adaptation, contact our engineering team to devise a tailored adapter solution.