M20-7820442

Overview

The M20-7820442 is a vertical pin strip header from the Harwin M20 series, designed for board-to-board or cable connections. It features a 2.54 mm (0.1 in) pitch and provides four positions in a single row. The connector utilizes gold-plated contacts for mating interfaces and tin-plated posts for termination. Constructed with nylon insulation, it supports through-hole mounting and soldering. The component operates within a temperature range of -55°C to 105°C and carries UL94 V-0 flammability ratings.

Feature Summary

• Vertical orientation facilitates standard PCB insertion
• Gold-plated contact surfaces ensure reliable signal transmission
• Tin-plated posts enable secure through-hole soldering
• Nylon insulation provides structural integrity and flame resistance

Applications

• Board-to-board interconnections
• Cable-to-board assemblies
• General electronic circuit prototyping
• Industrial control module interfaces

Procurement Notes

Verify RoHS compliance status carefully, as specific manufacturing batches may vary. Confirm current availability through authorized distributors, noting that some sources indicate limited stock or end-of-life transitions. Ensure the ordering suffix matches the required plating configuration. Cross-reference datasheet revisions to confirm dimensional accuracy before finalizing procurement orders.

Selection Notes

Select this component when a vertical, single-row header with a 2.54 mm pitch is required. The gold-tin contact combination offers durability for repeated mating cycles. Consider the through-hole installation method and operating temperature limits. Compare against other M20 variants if different row counts or horizontal orientations are needed for space constraints.

Part Context

This part belongs to the M20 series, a widely used line of headers and wire housings by Harwin. The series is known for its robust construction and versatile mounting options. The M20-7820442 specifically addresses applications requiring simple, reliable vertical connections with standard spacing, fitting into broader industrial and consumer electronics design ecosystems.

Replacement Considerations

M20-7862442: SMT socket variant, not a direct pin strip replacement. M20-7851542: Double-row socket, incompatible form factor. No direct public substitute identified for this exact vertical pin strip specification.