71-432197-39S

Overview

The Amphenol Aerospace Operations part number 71-432197-39S is a circular MIL-spec connector plug. It belongs to the MS3470 series and complies with MIL-DTL-26482 Series I standards. The unit features a size 20 shell with a straight cable mount installation style. It utilizes a 20-39 insertion arrangement containing 39 socket contacts. The contacts are gold-plated copper alloy, rated for 13 A current. The connector provides environmental sealing capabilities suitable for harsh aerospace conditions.

Feature Summary

• Compliant with MIL-DTL-26482 Series I specifications for circular connectors
• Features a robust metal shell designed for high-vibration environments
• Provides reliable electrical interconnection via gold-plated contacts
• Supports secure cable mounting with strain relief integration

Applications

• Aircraft avionics systems
• Military communication equipment
• Radar signal processing units
• Defense instrumentation panels

Procurement Notes

Verify the specific suffix codes against official manufacturer documentation to ensure correct contact configuration and shell finish. Confirm that the intended application environment aligns with the connector's temperature and sealing ratings. Request updated compliance certificates and material declarations prior to finalizing procurement orders.

Selection Notes

Select this component when a MIL-DTL-26482 compliant circular plug is required for space-constrained installations. Ensure the mating receptacle matches the shell size and insertion arrangement exactly. Evaluate the need for environmental sealing requirements against the standard IP rating of the series.

Part Context

This component falls under the MS3470 family of circular connectors manufactured by Amphenol Aerospace. These connectors are engineered for demanding applications requiring high reliability and durability. The series supports various contact arrangements and shell sizes to accommodate diverse wiring harness needs in critical systems.

Replacement Considerations

Equivalent parts include MS3470L20-39S and D38999 Series I equivalents. Verify cross-compatibility regarding pinout definitions and mechanical dimensions before substitution.