RM252-040-312-5500BN

Headers, Male Pins Overview

The RM252-040-312-5500BN is a rectangular MIL-spec connector from the AirBorn R Series, manufactured by Molex. It is a board mount plug with a right-angle orientation and plastic body. The component features dual rows of gold-plated pins with a 1.91 mm pitch. It utilizes through-hole termination with a 0.109-inch tail length and includes a guide set. Designed for high reliability, it supports up to 40 circuits, operates between -65°C and +125°C, and carries an insulation resistance of 5 GOhms.

Headers, Male Pins Feature Summary

• Complies with MIL-DTL-55302 military specifications for rugged environments
• Features gold-plated beryllium copper contacts for reliable signal transmission
• Incorporates a polyphenylene sulfide (PPS) housing for thermal stability
• Includes integrated guide sets to ensure precise mating alignment

Headers, Male Pins Applications

• Avionics control systems
• Military communication equipment
• Radar and electronic warfare units
• Spacecraft instrumentation panels

Headers, Male Pins Procurement Notes

Verify the specific ordering suffix BN indicates pre-tinned tin/lead alloy termination rather than standard gold plating. Confirm that the right-angle board mount configuration matches the PCB layout requirements. Ensure compatibility with the corresponding receptacle within the same R Series family. Validate that the 0.109-inch tail length accommodates the target board thickness and soldering process constraints.

Headers, Male Pins Selection Notes

Select this variant when a right-angle, dual-row board mount solution is required under MIL-DTL-55302 standards. The pre-tinned termination facilitates automated assembly processes. Consider the 1.91 mm pitch density for space-constrained applications. Verify environmental ratings against operational temperature extremes. Ensure the plastic body material meets flame retardancy requirements for the target enclosure.

Headers, Male Pins Part Context

This part belongs to the AirBorn R Series, a line of rectangular connectors known for high-density interconnects in defense and aerospace sectors. The series offers various configurations including straight and right-angle plugs and receptacles. The manufacturer, Molex / AirBorn, maintains strict quality controls aligned with QPL military supplier standards, ensuring consistent performance across diverse harsh environments.

Headers, Male Pins Replacement Considerations

Direct substitutes must match the MIL-DTL-55302 specification, 40-position count, dual-row layout, and right-angle form factor. Verify identical 1.91 mm pitch and through-hole termination style. Cross-reference mounting dimensions and guide set placement to ensure mechanical interchangeability without PCB redesign.

Headers, Male Pins FAQ

What does the 'BN' suffix indicate for this connector?

The 'BN' suffix specifies that the termination leads are pre-tinned with a tin/lead alloy, differing from standard bare or gold-plated tails.

Is this connector compatible with standard MIL-DTL-55302 receptacles?

Yes, it is designed to mate with other components adhering to the MIL-DTL-55302 specification within the R Series family.