71-477105-42S

Overview

The Amphenol Aerospace Operations 71-477105-42S is a circular MIL-spec plug connector designed for rugged interconnect applications. It features a 41-position configuration with socket contacts, utilizing a 20-41 insertion arrangement. The unit employs a cable-mount installation style and crimp termination method for reliable signal transmission. Constructed with copper alloy contacts plated in gold, it ensures durability in harsh environments. This component adheres to MIL-DTL-26482 Series II standards, providing a robust solution for military and aerospace systems requiring high-density connectivity.

Feature Summary

• Circular MIL-spec design compliant with MIL-DTL-26482 Series II standards
• Socket contact configuration with gold-plated copper alloy terminals
• Cable-mount installation with crimp termination for secure wiring
• High-density 41-position layout optimized for space-constrained assemblies

Applications

• Military avionics and flight control systems
• Ruggedized ground vehicle electrical networks
• Naval shipboard communication and sensor arrays
• Aerospace instrumentation and data acquisition modules

Procurement Notes

Verify the specific suffix codes against official Amphenol documentation to confirm exact contact plating, shell material, and environmental sealing ratings. Ensure compatibility with mating receptacles regarding keying and pin-out arrangements. Confirm that the crimp tooling matches the specified contact size requirements for proper termination integrity. Validate environmental operating ranges against project specifications before final procurement approval.

Selection Notes

Select this connector when a high-density circular interface is required for MIL-DTL-26482 compliance. The socket configuration makes it suitable for mating with pin-equipped receptacles in fixed installations. Consider the cable-mount style for direct wire harness integration without panel cutouts. Evaluate the 41-position count against total circuit requirements to ensure optimal space utilization without unnecessary bulk or excess unused positions.

Part Context

This component belongs to the Amphenol Aerospace circular connector family, engineered for demanding defense and aerospace sectors. It represents a standard interconnect solution within the MIL-DTL-26482 ecosystem, focusing on reliability and mechanical strength. The product line supports various configurations to meet diverse wiring density needs across aircraft, naval, and terrestrial military platforms.

Replacement Considerations

Cross-reference with MS3471L20-41SW for equivalent physical and electrical characteristics. Verify that any substitute maintains identical shell size, insertion arrangement, and contact type to ensure interchangeability in existing assemblies without redesign.