M20-7871246R

Overview

The M20-7871246R is a dual-in-line (DIL) socket assembly from the Harwin M20 series, designed for surface mount technology. It features a 2.54 mm pitch and consists of two rows with a total of 20 positions. The connector utilizes a bottom entry configuration for mating compatibility. The housing material is polyamide (PA6T), meeting UL94 V-0 flammability ratings. Contact plating options include tin or gold over nickel finishes to ensure reliable electrical performance in various environmental conditions.

Feature Summary

• Dual-row DIL socket assembly optimized for surface mount PCB integration
• Bottom entry design facilitates direct mating with corresponding header pins
• Polyamide insulation housing provides high thermal stability and UL94 V-0 compliance

Applications

• Board-to-board interconnection systems requiring compact vertical stacking
• Wire-to-board connections utilizing compatible wire harnesses
• High-reliability electronic assemblies in industrial or aerospace environments

Procurement Notes

Verify component authenticity through authorized Harwin distributors or certified supply chain partners. Confirm RoHS compliance status and specific contact plating variants (tin vs. gold) against project requirements. Check for obsolescence notices as end-of-life products may have limited availability. Ensure ECAD models match the exact suffix specifications for accurate footprint generation.

Selection Notes

Select this component when a low-profile, dual-row socket is required for surface mounting. Verify that the mated stacking heights of 10.04mm or 11.63mm fit within the mechanical envelope constraints. Ensure the mating header matches the 2.54mm pitch and row configuration. Consider environmental factors such as operating temperature range and chemical exposure when choosing between tin and gold contact finishes.

Part Context

This part belongs to the M20 series, a family of rectangular connectors known for high reliability and compact form factors. The series supports both single and dual-row configurations with various termination styles. The M20-7871246R specifically addresses applications needing robust surface mount sockets with precise alignment capabilities for automated assembly processes.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Evaluate cross-reference options only if official Harwin recommendations exist. Ensure any alternative maintains identical pitch, row count, and mounting type to preserve board layout integrity.