RM222-050-531-0256

Headers, Receptacles, Female Sockets Overview

The RM222-050-531-0256 is a rectangular MIL-Spec connector from the AirBorn R Series, manufactured by Molex. It functions as a board mount receptacle featuring 50 positions arranged in two rows with a 1.91 mm pitch. The component utilizes through-hole termination for female sockets and includes mounting ears for secure installation. Constructed with beryllium copper and brass contacts, gold plating, and a polyphenylene sulfide (PPS) housing, it supports a current rating of 3 A and voltage up to 750 V across an operating temperature range of -65 C to +125 C.

Headers, Receptacles, Female Sockets Feature Summary

• Complies with MIL-DTL-55302 military specifications for rugged reliability
• Features gold-plated female socket contacts for stable signal transmission
• Includes integrated mounting ears for enhanced mechanical stability on circuit boards

Headers, Receptacles, Female Sockets Applications

• Aviation control and display systems
• Spacecraft and satellite electronics
• Missile guidance and electronic warfare equipment

Headers, Receptacles, Female Sockets Procurement Notes

Verify the specific suffix codes against official Molex documentation to confirm contact configuration and termination style. Ensure compatibility with mating plugs within the same R Series family. Confirm that the manufacturing origin meets project requirements, as variations exist between US and international production lines. Cross-reference the part number with the latest datasheet to validate environmental ratings and material specifications before procurement.

Headers, Receptacles, Female Sockets Selection Notes

Select this component when a high-density, two-row MIL-Spec receptacle is required for board-level interconnects. The straight orientation and through-hole termination suit standard PCB assembly processes. Verify that the 50-position count and 1.91 mm pitch align with the design layout. Consider the PPS housing material for thermal resistance and the gold contact finish for corrosion protection in demanding environments.

Headers, Receptacles, Female Sockets Part Context

This part belongs to the AirBorn R Series, a line of rectangular connectors designed for harsh environments. As a Molex company product, it adheres to strict quality standards. The series is widely used in aerospace and defense applications where vibration resistance and reliable electrical performance are critical. The RM222 designation indicates a specific form factor within the broader R Series portfolio.

Headers, Receptacles, Female Sockets Replacement Considerations

M55302/190LC050X is a confirmed public substitute part number for this component. Verify pinout and dimensional compatibility before substitution.