71-528268-21R

Overview

The Amphenol Aerospace Operations part number 71-528268-21R is a circular MIL-specification connector receptacle belonging to the JTPQ series. It complies with MIL-DTL-38999 Series III standards and features a size 22 shell. The assembly utilizes a jam nut mounting style for secure panel installation. Electrical characteristics include a current rating of 13 A, achieved through gold-plated copper alloy contacts. The contact arrangement is designated as 22-21, providing 21 socket positions. Termination is accomplished via crimp connections to ensure reliable signal and power transmission in demanding environments.

Feature Summary

• Complies with MIL-DTL-38999 Series III specifications for high-reliability interconnects
• Features a size 22 aluminum shell with black anodized finish for corrosion resistance
• Utilizes a jam nut mounting style for secure panel installation
• Employs gold-plated copper alloy contacts for low contact resistance

Applications

• Avionics systems requiring MIL-DTL-38999 compliance
• Military communication equipment interfaces
• Radar system signal distribution panels
• Aerospace instrumentation control modules

Procurement Notes

Verify the specific suffix codes against the manufacturer datasheet to confirm exact contact arrangements and plating options. Ensure compatibility with mating plugs regarding shell size and keying positions. Confirm environmental sealing requirements align with IP ratings specified for the JTPQ series. Cross-reference the MIL-DTL-38999 revision level to guarantee interchangeability with existing system components.

Selection Notes

Select this component when a MIL-DTL-38999 Series III jam nut receptacle is required. Verify that the 21-position socket configuration matches the mating plug pin layout. Ensure the operating temperature range meets application demands. Confirm that the crimp termination method is supported by available tooling and wire gauges.

Part Context

This part belongs to the Amphenol JTPQ series of circular connectors. These connectors are designed for harsh environment applications. The series offers various shell sizes and contact arrangements. The JTPQ line provides robust performance in aerospace and defense sectors. It supports both signal and power transmission needs.

Replacement Considerations

Direct equivalents may include MS3470L22-21S or similar MIL-DTL-38999 Series III jam nut receptacles. Verify dimensional tolerances and contact positioning before substitution. Ensure mating interface compatibility with existing cable assemblies.