M55302/58LB44H

Headers, Receptacles, Female Sockets Overview

The M55302/58LB44H is a rectangular MIL-Spec connector from the AirBorn W Series, manufactured by Molex. It functions as a receptacle with 44 positions arranged in two rows. The component utilizes a solder termination type and is designed for PCB mount installation. Contacts are female sockets plated with gold, constructed from copper alloy. The housing is made of Polyphenylene Sulfide (PPS). Key electrical parameters include a current rating of 5 A, insulation resistance of 5 GOhms, and an operating temperature range from -65 C to +125 C. The contact pitch is 2.54 mm.

Headers, Receptacles, Female Sockets Feature Summary

• Complies with MIL-DTL-55302 military specifications for high-reliability applications.
• Features gold-plated copper alloy contacts for corrosion resistance and stable conductivity.
• Constructed with Polyphenylene Sulfide (PPS) housing for thermal stability.
• Designed for direct printed circuit board mounting with solder termination.

Headers, Receptacles, Female Sockets Applications

• Military avionics systems
• Defense communication equipment
• Ruggedized electronic assemblies

Headers, Receptacles, Female Sockets Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct pin configuration and mating compatibility. Confirm that the part number matches the exact MIL-DTL-55302 revision required for your system. Cross-reference the supplier documentation with the original AirBorn/Molex specifications to validate authenticity and traceability before procurement.

Headers, Receptacles, Female Sockets Selection Notes

Select this component when a 44-position, two-row receptacle is required for MIL-DTL-55302 compliant designs. Ensure the application environment falls within the specified -65 C to +125 C temperature range. Verify that the PCB layout supports the 2.54 mm pitch and that the solder termination method aligns with the assembly process. Confirm mating connector compatibility within the W Series family.

Headers, Receptacles, Female Sockets Part Context

This part belongs to the AirBorn W Series, a line of rectangular connectors known for meeting stringent military standards. The M55302 designation indicates compliance with MIL-DTL-55302 specifications. As a product of Molex / AirBorn, it integrates established reliability features into a compact form factor suitable for space-constrained, high-performance electronic environments requiring robust interconnect solutions.

Headers, Receptacles, Female Sockets Replacement Considerations

Consult official cross-reference lists for equivalent parts. Generic substitutes may not meet MIL-DTL-55302 requirements. Verify dimensional and electrical compatibility with existing mating components before substitution.

Headers, Receptacles, Female Sockets FAQ

What is the contact material for this receptacle?

The contacts are made of copper alloy with gold plating.

Does this connector support right-angle mounting?

No, the standard configuration for this part number is straight PCB mount.