71-433337-39T

Overview

The 71-433337-39T is a circular MIL-spec connector manufactured by Amphenol Aerospace Operations. It corresponds to the JT06RP-20-39SB(003)(LC) designation and falls under the MIL-DTL-26482 Series I standard. The component features a size 20 shell with a straight plug configuration and bayonet coupling mechanism. It utilizes socket contacts arranged in insertion arrangement 39, providing a total of 5 positions. The housing is constructed from aluminum alloy with a cadmium electroless nickel plating finish. Contact materials are copper alloy, plated with gold over nickel for enhanced conductivity and corrosion resistance. The unit supports solder termination for reliable wire attachment.

Feature Summary

• Bayonet coupling system ensures rapid connection and secure locking in high-vibration environments
• Cylindrical metal shell design provides robust mechanical protection and electromagnetic shielding
• Gold-plated copper alloy contacts maintain stable electrical performance across operational temperatures
• Solder termination interface allows direct integration into custom cable assemblies

Applications

• Avionics systems in military aircraft and helicopters
• Radar and communication equipment installations
• Test and measurement instrumentation interfaces
• Ground support equipment power and signal distribution

Procurement Notes

Verify the manufacturer origin carefully, as the part number 71-433337-39T is an internal Amphenol identifier often associated with legacy or specific contract manufacturing lines. Confirm that the received units match the JT06RP-20-39SB(003)(LC) specification exactly. Request full traceability documentation including material certifications and test reports to ensure compliance with MIL-DTL-26482 requirements before final acceptance.

Selection Notes

Select this connector when a compact, shielded circular interface is required for fixed or semi-permanent cable assemblies. The size 20 shell offers a balance between contact density and physical footprint. Ensure the mating receptacle shares the same bayonet style and insertion arrangement. Verify that the operating environment temperature range aligns with the standard military specifications for cadmium-plated aluminum housings.

Part Context

This component belongs to the extensive portfolio of Amphenol Aerospace interconnect solutions designed for defense and aerospace sectors. The 71-series numbering typically denotes specific customer or program-specific configurations within the broader MIL-DTL-26482 family. These connectors are engineered to replace older MS-style parts while maintaining dimensional compatibility and electrical performance standards established for rugged military applications.

Replacement Considerations

Direct equivalents include JT06RP-20-39SB(003)(LC). Cross-reference with other manufacturers producing MIL-DTL-26482 Series I connectors, ensuring identical shell size, insertion arrangement, and contact type. Verify that any substitute maintains the same bayonet coupling torque specifications and environmental sealing capabilities.