M20-7890846

Overview

The M20-7890846 is a vertical pin header connector from the Harwin M20 series, designed for through-hole mounting. It features 8 positions with a 2.54 mm (0.100 inch) pitch in a single row configuration. The contacts are male pins made of brass with tin plating, rated for 3A per contact. The housing is constructed from black polyamide (PA6T), offering UL94 V-0 flammability rating and an operating temperature range of -40°C to 105°C. This component supports board-to-board or cable connections.

Feature Summary

• Vertical pin header design with through-hole termination for secure PCB integration
• Single-row configuration with 8 positions and 2.54mm standard spacing
• Tin-plated brass contacts ensuring reliable conductivity and corrosion resistance
• Black PA6T insulation housing providing high thermal stability and flame retardancy

Applications

• General-purpose electronic assemblies requiring vertical interconnects
• Board-to-board connection systems in industrial equipment
• Cable-to-board interface applications in consumer electronics
• Prototyping and development boards utilizing standard 2.54mm spacing

Procurement Notes

Verify the specific part number M20-7890846 against official Harwin documentation to confirm current production status and availability. Ensure that the tin-plated contact finish and vertical orientation match the design requirements. Cross-reference the 8-position count and single-row layout to prevent installation errors. Confirm compliance with RoHS directives if required by the target application environment.

Selection Notes

Select this connector when a vertical, through-hole solution is required for low-current signal transmission. The 2.54mm pitch ensures compatibility with standard breadboards and ribbon cables. Consider the 3A current rating and 105°C temperature limit for environmental suitability. The lack of a shroud allows for flexible mating options but requires careful alignment during assembly.

Part Context

This component belongs to the Harwin M20 series, a widely used line of rectangular connectors known for their reliability and versatility. The M20 series offers various configurations including headers, sockets, and wire housings in both horizontal and vertical orientations. The M20-7890846 specifically addresses needs for simple, cost-effective vertical interconnections in space-constrained designs.

Replacement Considerations

Compatible substitutes within the M20 series include other 8-position vertical headers such as M20-9980846, though differences in row count or mounting style must be verified. Alternative manufacturers offering 2.54mm pitch vertical headers should be evaluated based on mechanical dimensions and electrical ratings to ensure interchangeability.