71-528266-66Y

Overview

The Amphenol Aerospace Operations part number 71-528266-66Y is a circular MIL-specification receptacle connector belonging to the 38999 Aluminum series. It features a wall mount installation style with a straight orientation and an aluminum shell material. The connector provides 66 positions utilizing socket (female) contacts arranged in insertion configuration 18-66. Contact termination is achieved via crimping, with gold plating on copper contact materials. Electrical ratings include a current capacity of 3 A and voltage ratings of 400 VAC and 500 VDC. This component complies with the MIL-DTL-38999 standard.

Feature Summary

• Wall mount receptacle design for secure panel integration
• Gold-plated copper socket contacts for reliable signal transmission
• Aluminum shell construction for structural durability
• Crimp termination method for robust wire attachment

Applications

• Avionics systems
• Aircraft power distribution
• Controls and instrumentation
• Harsh environment interconnects

Procurement Notes

Verify the exact datasheet specifications directly from the manufacturer or authorized distributor before procurement. Confirm that the 66-position socket configuration and 18-66 insertion arrangement match the system requirements. Ensure compatibility with mating plugs under the MIL-DTL-38999 standard. Check for any specific environmental sealing or shielding requirements not detailed in general descriptions. Validate that the aluminum shell and crimp termination methods align with assembly capabilities.

Selection Notes

Select this connector when a high-density 66-position interface is required within a MIL-DTL-38999 framework. The wall mount style suits applications where space constraints favor direct panel mounting over cable connections. The aluminum shell offers a balance of weight and strength suitable for aerospace environments. Gold-plated contacts ensure low resistance and corrosion resistance for critical signal paths. Verify that the 3 A current rating meets the load requirements of the connected circuits.

Part Context

This component is part of the Amphenol 38999 Aluminum series, a widely used family of circular connectors in the aerospace and defense sectors. These connectors are known for their high density and rugged performance. The 71- prefix typically denotes Amphenol's manufacturing origin for this specific line. The series supports various shell sizes and contact arrangements to accommodate diverse wiring needs in demanding operational conditions.

Replacement Considerations

Cross-reference with MS3452W series equivalents if MIL-DTL-5015 compliance is acceptable, though pin/socket configurations differ. Verify mating compatibility with existing plugs using the same shell size and insertion code. Ensure substitute parts maintain the 66-position count and wall mount form factor.