M20-7871042P

Overview

The M20-7871042P is a 20-position dual in-line (DIL) surface mount socket connector from the Harwin M20 series. It features a 2.54mm pitch and supports both bottom and top entry configurations. The contacts are gold-plated phosphor bronze, while terminations utilize 100% tin over nickel plating. Rated for 3A per contact at 250V, it operates within a -40°C to +105°C temperature range. The housing is constructed from black polyamide (PA6T) with UL94 V-0 flammability rating.

Feature Summary

• Dual-entry design allows flexible board-to-board or cable connections via bottom or top access.
• Gold-plated phosphor bronze contacts ensure reliable signal transmission and corrosion resistance.
• Surface mount termination facilitates automated PCB assembly processes.

Applications

• Board-to-board interconnections
• Cable-to-board assemblies
• Industrial control modules

Procurement Notes

Verify the specific suffix 'P' against the manufacturer's official datasheet to confirm if it denotes a particular tape-and-reel packaging variant or a specific material certification distinct from the standard M20-7871042. Ensure compatibility with mating header specifications before procurement.

Selection Notes

Select this component when a low-profile, dual-entry SMT socket is required for high-density applications. Confirm that the 2.54mm pitch aligns with the mating header and that the surface mount footprint matches the PCB layout constraints.

Part Context

This part belongs to the Harwin M20 series, designed for compact electronic assemblies. It serves as a female receptacle counterpart to male headers, providing secure electrical connections in space-constrained environments requiring robust mechanical retention.

Replacement Considerations

M20-7871042