M55302/58LB20Y

Headers, Receptacles, Female Sockets Overview

The M55302/58LB20Y is a rectangular MIL-DTL-55302 connector from the AirBorn W Series, manufactured by Molex. It features a straight PCB mount receptacle with 20 positions arranged in two rows. The contacts are gold-plated copper alloy sockets rated for 5 A current. Designed for extreme environments, it operates between -65 C and +125 C. The housing is constructed from polyphenylene sulfide (PPS), providing high insulation resistance of 5 GOhms. The connector utilizes a 2.54 mm pitch and supports 22 AWG wire termination via solder.

Headers, Receptacles, Female Sockets Feature Summary

• MIL-DTL-55302 compliant military-grade construction
• Gold-plated copper alloy socket contacts
• Polyphenylene sulfide (PPS) insulating housing
• Field-proven flight heritage reliability

Headers, Receptacles, Female Sockets Applications

• NASA Space Shuttle systems
• Mars Rover instrumentation
• Military avionics platforms
• Government observation equipment

Headers, Receptacles, Female Sockets Procurement Notes

Verify that the specific suffix LB20Y matches the required contact configuration and row arrangement. Confirm that the straight mounting angle aligns with the PCB layout requirements. Ensure the gold plating specification meets the environmental corrosion resistance needs. Validate the PPS housing material against thermal constraints. Cross-reference the MIL-DTL-55302 standard compliance with project specifications.

Headers, Receptacles, Female Sockets Selection Notes

Select this component when a 20-position, two-row MIL-DTL-55302 connector is required. Choose based on the need for 5 A current rating per contact. Consider the -65 C to +125 C operating temperature range for harsh environments. Opt for the W Series for its established flight heritage. Verify compatibility with 22 AWG wire gauges for proper termination.

Headers, Receptacles, Female Sockets Part Context

This part belongs to the AirBorn W Series, a family of 0.100 inch pitch rectangular connectors. These connectors are designed for high-reliability applications requiring robust performance. The series includes various row options and contact counts. The M55302/58LB20Y specifically represents a 20-position variant within this standardized military connector ecosystem.

Headers, Receptacles, Female Sockets Replacement Considerations

Direct substitutes must adhere to MIL-DTL-55302 specifications. Verify pin-to-pin compatibility for equivalent position counts. Ensure identical electrical ratings and temperature ranges. Check mechanical dimensions for board space constraints. Confirm material compatibility for housing and contacts.