71-477102-98S

Overview

The Amphenol Aerospace Operations model 71-477102-98S is a circular connector assembly designed for high-reliability aerospace and defense applications. This specific part number denotes a receptacle configuration featuring a shell size of 98, which corresponds to a standard interface dimension within the MIL-DTL-38999 Series III family. The connector utilizes a solder termination method for pin contacts, ensuring robust mechanical attachment to printed circuit boards or cable harnesses. It is constructed with materials selected for durability in harsh environments, including corrosion-resistant plating on the shell and high-performance dielectric materials for the insulator.

Feature Summary

• High-density contact arrangement optimized for space-constrained installations
• Robust shell construction providing environmental sealing against moisture and contaminants
• Precision-machined coupling mechanism ensuring secure mating retention

Applications

• Avionics systems in military aircraft
• Radar and communication equipment enclosures
• Ground support electronic test sets

Procurement Notes

Verify the exact suffix codes against the manufacturer's current datasheet to confirm plating type, contact material, and insulation color specifications. Ensure compatibility with existing panel cutouts and mating connector interfaces before procurement. Cross-reference the full part number with authorized distributors to confirm availability and authenticity.

Selection Notes

Select this component based on required shell size and contact count compatibility with the system design. Evaluate environmental sealing requirements such as IP rating and operating temperature range. Confirm that the termination style matches the assembly process capabilities, whether through PCB mounting or direct cable wiring.

Part Context

This connector belongs to the MIL-DTL-38999 Series III family, known for its compact size and high contact density compared to previous series generations. The 71-series designation typically indicates a specific shell style and coupling nut configuration within Amphenol's product line, tailored for ruggedized electronic interconnections.

Replacement Considerations

Compatible replacements include equivalent MIL-DTL-38999 Series III connectors from manufacturers such as LEMO, Glenair, or ITT Cannon, provided they match the shell size, contact arrangement, and termination type. Verify dimensional interchangeability and electrical ratings before substitution.