M20-7873942

Overview

The Harwin M20-7873942 is a surface-mount socket header from the M20 series, designed for board-to-board and wire-to-board connections. It features a 2.54 mm pitch with 3 positions in a single row configuration. The connector utilizes gold-plated phosphor bronze contacts housed within a black polyamide (PA6T) insulator rated UL94 V-0. Rated for 3A at temperatures ranging from -40°C to 105°C, it offers mated stacking heights of 10.04mm and 11.63mm.

Feature Summary

• Surface mount assembly with bottom or top entry socket design
• Gold-plated phosphor bronze contacts for reliable signal transmission
• Polyamide insulation housing with UL94 V-0 flammability rating

Applications

• Board-to-board interconnects
• Wire-to-board connections
• General electronic circuit assemblies

Procurement Notes

Verify component authenticity through authorized channels due to potential obsolescence risks. Confirm RoHS compliance status via official datasheets before integration. Ensure storage conditions maintain contact integrity. Validate pin count and pitch specifications against current design requirements to prevent mating errors.

Selection Notes

Select this component for applications requiring low-profile surface mounting with precise 2.54 mm spacing. Consider the specific mated stacking heights of 10.04mm or 11.63mm when designing PCB clearance zones. The 3A current rating suits general signal and low-power applications within the specified temperature range.

Part Context

This part belongs to the Harwin M20 series of headers and wire housings. The series is characterized by its compact form factor and robust mechanical stability. The M20-7873942 specifically represents a 3-position variant optimized for space-constrained designs requiring reliable surface-mount termination.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.