MQD-30G-14

Overview

The MQD-30G-14 is a circular MIL-spec connector receptacle manufactured by Amphenol Aerospace Operations. It belongs to the D38999 Series III family and features a shell size of 25 with a jam nut mounting style. The component provides 30 positions arranged in a mixed pin configuration, utilizing crimp termination for wire connections. Constructed with an aluminum alloy housing finished in olive drab cadmium plating, it ensures durability in harsh environments. The contacts are gold-plated copper alloy, supporting current ratings ranging from 7.5 A to 46 A depending on the specific contact type installed.

Feature Summary

• Self-locking coupling mechanism ensures secure connection under vibration
• Mil-spec construction supports operation in extreme environmental conditions
• Mixed pin arrangement accommodates diverse signal and power requirements

Applications

• Military avionics systems
• Naval shipboard equipment
• Ground combat vehicle interconnects

Procurement Notes

Verify the specific insertion arrangement code against the official datasheet to ensure compatibility with mating connectors. Confirm that the selected contact types match the required current ratings and termination specifications. Ensure the jam nut mounting style aligns with the panel thickness and installation constraints of the target application.

Selection Notes

Select this component when a high-density 30-position circular connector is required for ruggedized applications. The mixed pin layout allows for flexible integration of various signal types within a single interface. Consider the self-locking feature for environments subject to significant mechanical shock or vibration where reliable retention is critical.

Part Context

This part is part of the extensive Amphenol Aerospace military interconnect portfolio, which has served defense applications for over 75 years. The D38999 Series III standard defines the performance criteria for these lightweight, high-performance connectors used in modern aerospace and defense platforms.

Replacement Considerations

Compatible substitutes include other manufacturers' D38999 Series III connectors with matching shell size 25 and 30-position mixed pin arrangements. Verify cross-compatibility regarding contact placement and locking mechanisms before substitution.