M55302/58LB70Y

Headers, Receptacles, Female Sockets Overview

The M55302/58LB70Y is a MIL-DTL-55302 compliant rectangular connector from the AirBorn W Series, manufactured by Molex. It features a right-angle PCB mount design with a 2-row configuration and 70 positions. The contacts are female sockets made of copper with gold plating, rated for 5 A current and 100 V voltage. The housing utilizes Polyphenylene Sulfide (PPS) insulation, supporting an operating temperature range of -65 °C to +125 °C. The unit employs solder termination with a 2.54 mm pitch.

Headers, Receptacles, Female Sockets Feature Summary

• Military-grade rectangular interconnect solution compliant with MIL-DTL-55302 specifications
• High-density 70-position layout utilizing a two-row arrangement for efficient board space usage
• Robust thermal stability provided by Polyphenylene Sulfide housing material

Headers, Receptacles, Female Sockets Applications

• Avionics systems requiring high-reliability interconnects
• Radar and electronic warfare equipment
• Ground-based military communication hardware

Headers, Receptacles, Female Sockets Procurement Notes

Verify the specific suffix 'Y' against the manufacturer's official datasheet to confirm contact plating and environmental sealing requirements. Ensure the right-angle orientation matches the mechanical constraints of the target printed circuit board assembly before finalizing procurement orders.

Headers, Receptacles, Female Sockets Selection Notes

Select this component when a MIL-DTL-55302 standard is mandatory for the application. The 70-position count and 2.54 mm pitch define the density limits. Confirm that the 5 A current rating per contact aligns with the electrical load requirements of the specific circuit paths within the system design.

Headers, Receptacles, Female Sockets Part Context

This part belongs to the AirBorn W Series, which provides high-density rectangular connectors for harsh environments. The M55302 designation indicates compliance with the detailed specification for plastic rectangular connectors used in military applications, ensuring standardized dimensions and performance testing across compatible mating interfaces.

Headers, Receptacles, Female Sockets Replacement Considerations

Cross-reference tools may identify parametrically similar parts, but direct substitution requires verifying identical MIL-DTL-55302 compliance, pinout compatibility, and mechanical footprint dimensions to ensure proper integration without redesigning the host assembly.