M20-7870442P

Overview

The M20-7870442P is a surface-mount header connector from the Harwin M20 series, featuring 40 positions in a dual-row configuration with a 2.54 mm (0.100 inch) pitch. It utilizes square male pins with gold plating on mating surfaces and tin plating on tails, housed in black polyamide (PA6T) insulation rated UL94 V-0. The unit supports a maximum current of 3A per contact at 250V, operating within -40°C to +105°C. Designed for board-to-board or cable applications, it offers push-pull retention and compatible stacking heights of 11.53mm, 12.23mm, 12.63mm, and 18.13mm.

Feature Summary

• Surface-mount construction with push-pull retention mechanism
• Gold-plated square male contacts for reliable signal transmission
• High-temperature resistant PA6T insulation housing
• Cuttable design allowing for custom position configurations

Applications

• Board-to-board interconnections
• Cable-to-board connections
• Industrial control systems
• Telecommunications equipment

Procurement Notes

Verify the specific suffix 'P' against official Harwin documentation to confirm if it denotes a particular tape-and-reel packaging variant or a specialized material specification distinct from the standard M20-8762042. Ensure compatibility with mating socket assemblies such as the M20-7832046. Confirm that the surface-mount footprint aligns with your PCB design requirements before finalizing procurement orders.

Selection Notes

Select this component when a high-density, dual-row surface-mount header is required for robust mechanical retention. The 2.54 mm pitch ensures broad compatibility with standard through-hole and SMT mating connectors. Consider the cuttable feature if variable pin counts are needed across different production runs. Verify that the 3A current rating meets the thermal management requirements of your specific circuit application.

Part Context

This part belongs to the Harwin M20 series, a widely used family of rectangular connectors known for their reliability in harsh environments. The M20 series offers various configurations including headers, sockets, and wire housings in both single and double row arrangements. This specific model represents a high-pin-count solution designed for dense electronic assemblies requiring secure surface-mount attachment.

Replacement Considerations

The M20-8762042 serves as a direct functional equivalent within the same M20 series. Both share identical electrical ratings, physical dimensions, and mounting characteristics. When substituting, verify that any packaging differences do not impact automated assembly processes.