71-433033-03Y

Overview

The Amphenol Aerospace Operations part number 71-433033-03Y is a circular MIL-spec connector plug. It complies with the MIL-DTL-38999 Series III standard. The component features a shell size of 12 and utilizes a 3-position arrangement designated as 3PD. It incorporates male pin contacts for signal transmission. The housing material is aluminum alloy, finished with a cadmium electroplating layer to enhance corrosion resistance. The termination method employed is solder cup technology. This receptacle-style plug is designed for secure cable mounting applications requiring high reliability.

Feature Summary

• Complies with MIL-DTL-38999 Series III environmental standards
• Features threaded coupling interface for secure connection
• Constructed from cadmium-plated aluminum alloy housing
• Utilizes solder cup termination for reliable electrical contact

Applications

• Avionics systems integration
• Radar equipment interconnects
• Military communication hardware
• Aerospace control units

Procurement Notes

Verify the specific suffix codes against official manufacturer documentation to ensure correct mating compatibility and environmental rating. Confirm that the cadmium plating meets project specifications due to potential regulatory restrictions in certain regions. Validate the solder cup termination style matches the intended cable assembly preparation methods before finalizing procurement orders.

Selection Notes

Select this component when a Series III circular connector is required for space-constrained environments. Ensure the shell size 12 fits within the available panel or cable diameter constraints. Verify that the 3-pin configuration aligns with the circuit requirements. Consider the cadmium plating finish if operating in corrosive environments where aluminum-only finishes are insufficient.

Part Context

This part belongs to the extensive family of MIL-DTL-38999 connectors produced by Amphenol Aerospace. These connectors are widely recognized for their high-density pin arrangements and robust mechanical performance. The Series III designation indicates a smaller form factor compared to earlier generations, allowing for increased contact density within limited installation spaces while maintaining military-grade durability.

Replacement Considerations

Cross-reference with legacy part numbers such as 71-433033-03P if sourcing from older inventory. Verify dimensional compatibility with existing mating receptacles. Ensure that any substitute maintains the same shell size and contact arrangement to guarantee proper fit and function without modifying the host equipment structure.