M55302/56C40

Overview

The M55302/56C40 is a rectangular MIL-DTL-55302 connector from the AirBorn W Series, manufactured by Molex. It is a plug with 40 positions arranged in two rows. The contacts are male pins made of copper alloy with gold plating, designed for solder termination. The housing is constructed from Polyphenylene Sulfide (PPS). It features a straight installation angle and free-hanging mounting style. The connector operates within a temperature range of -65°C to +125°C, has an insulation resistance of 5 GOhms, and supports 22 AWG wire.

Feature Summary

• Complies with MIL-DTL-55302 military specifications for high-reliability interconnects.
• Utilizes gold-plated copper alloy contacts for corrosion resistance and stable conductivity.
• Features a PPS thermoplastic housing for structural integrity and thermal stability.

Applications

• Military avionics systems
• Ground-based defense electronics
• Aerospace communication equipment

Procurement Notes

Verify the specific manufacturer source, as Molex acquired AirBorn. Confirm that the part number matches the exact MIL-DTL-55302 specification requirements for your application. Ensure compatibility with mating receptacles from the same series. Check for any RoHS compliance documentation if required by your procurement standards. Validate the supplier's authorization to sell genuine components.

Selection Notes

Select this component when a 40-position, two-row MIL-spec plug is required. Ensure the design accommodates a straight, free-hanging configuration. Verify that the circuitry supports solder termination on 22 AWG conductors. Confirm that the operating environment falls within the specified -65°C to +125°C range. Match the contact gender (male) with the corresponding female receptacle.

Part Context

This part belongs to the AirBorn W Series, which provides robust rectangular connectors for demanding environments. The M55302 designation indicates compliance with the MIL-DTL-55302 standard. The 'C40' suffix typically denotes the 40-position variant within this family. These connectors are engineered for durability and consistent performance in critical applications.

Replacement Considerations

Cross-reference with other manufacturers offering MIL-DTL-55302 compliant 40-position plugs. Verify dimensional compatibility and pin assignment before substitution. Ensure the replacement maintains the same contact type, termination method, and environmental ratings.