M20-7871242

Overview

The M20-7871242 is a surface-mount female socket connector from the Harwin M20 series. It features a 24-position configuration with a 0.100-inch (2.54mm) pitch across two rows. The contacts utilize gold plating for mating surfaces and tin for column interfaces, ensuring reliable conductivity. Designed for bottom or top entry, this component supports PCB integration with specific stacking heights to accommodate board-to-board or cable applications.

Feature Summary

• Dual-row receptacle design accommodating 24 positions
• Gold-plated contact surfaces for enhanced durability
• Flexible entry orientation supporting bottom or top access
• Surface-mount termination for automated assembly

Applications

• Board-to-board interconnect systems
• Cable-to-board connections requiring flexible entry
• High-density electronic assemblies
• Industrial control module interfaces

Procurement Notes

Verify the specific entry orientation required for your design, as this part supports both bottom and top entry configurations. Confirm that the gold-plated contact specification aligns with your corrosion resistance needs. Ensure the surface-mount footprint matches your PCB layout guidelines. Check for any RoHS compliance documentation if environmental regulations apply to your manufacturing process.

Selection Notes

Choose this connector when a 24-position interface is necessary with high-cycle reliability due to gold plating. The dual-entry capability offers layout flexibility compared to fixed-orientation headers. Consider the surface-mount requirement against through-hole alternatives for space constraints. Evaluate the 2.54mm pitch compatibility with existing mating pins in your system architecture.

Part Context

This component belongs to the M20 series of rectangular connectors, known for their robust construction and versatile mounting options. The M20 line includes various header and socket variants designed for diverse industrial and commercial applications. This specific model represents the socket counterpart to the M20 pin headers, maintaining consistent pitch and mechanical standards within the family.

Replacement Considerations

• M20-7871342
• M20-7871046

FAQ

Can this connector be mounted from the top or only the bottom?

Yes, the M20-7871242 is designed to support both bottom and top entry orientations, providing flexibility in PCB assembly.

What is the contact material plating specification?

The mating contacts are gold-plated, while the column contacts are tin-plated to ensure optimal electrical performance and solderability.