71-477108-55P

Overview

The Amphenol Aerospace Operations part number 71-477108-55P is a circular MIL-spec connector plug. It features 55 positions with socket contacts, designed for crimp termination. The housing size is 22, and it utilizes a bayonet coupling style for secure mating. This component complies with MIL-DTL-38999 Series III standards, ensuring reliability in demanding environments.

Feature Summary

• Bayonet coupling mechanism for rapid connection and disconnection
• Crimp termination method for reliable electrical contact
• Compliance with MIL-DTL-38999 Series III military specifications

Applications

• Military avionics systems
• Defense communication equipment
• Ruggedized industrial control panels

Procurement Notes

Verify the specific datasheet revision and environmental sealing options (such as IP67 ratings) against your system requirements. Confirm that the supplier provides traceability documentation required for defense contracts. Ensure compatibility with corresponding receptacle housings before finalizing procurement orders.

Selection Notes

Select this model when a high-density 55-position interface is required within a compact shell size 22 form factor. The bayonet lock is suitable for applications requiring frequent maintenance access. Verify that the crimp tooling matches the specified contact sizes to ensure proper termination integrity.

Part Context

This part belongs to the JT series of circular connectors manufactured by Amphenol Aerospace Operations. These connectors are widely used in aerospace and defense sectors due to their rugged construction and standardized dimensions. The 71- prefix indicates a specific variant within the broader JT product line.

Replacement Considerations

Compatible substitutes include MS3108R22-55S and DT08-22-55S. Ensure that replacement parts maintain the same shell size, contact arrangement, and coupling type to fit existing mounting holes and mating interfaces without modification.

FAQ

What is the mating cycle rating for this connector?

The datasheet specifies a minimum of 500 mating cycles for the bayonet coupling mechanism.

Is this connector environmentally sealed?

Yes, the design supports environmental sealing options to meet IP67 or IP68 standards depending on the specific seal configuration used.