M20-7851442

Overview

The Harwin M20-7851442 is a through-hole socket strip featuring 28 positions arranged in a dual in-line configuration. It utilizes a 2.54 mm pitch and is designed for straight board-to-board mounting. The connector employs a push-pull locking mechanism and accepts contacts with gold plating on the mating interface and tin plating on the tail. Constructed with polyamide insulation, it supports a rated current of 3 A per contact and operates within a temperature range of -40°C to +105°C.

Feature Summary

• Dual row receptacle design for high-density interconnect applications
• Push-pull locking system ensures secure mechanical engagement
• Bottom or top insertion capability for flexible assembly orientation

Applications

• Industrial control systems requiring robust board-to-board connections
• Telecommunications equipment utilizing standard 2.54 mm spacing
• General purpose electronic assemblies needing reliable signal transmission

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number against official Harwin documentation. Confirm that the specific suffix matches the required contact plating and housing color specifications. Ensure compliance with relevant environmental directives before integration into final products.

Selection Notes

Select this component when a 28-position through-hole solution is required. Verify that the 2.54 mm pitch aligns with the PCB footprint design. Consider the push-pull retention force requirements and ensure the mating header provides compatible mechanical support for the intended application environment.

Part Context

This component belongs to the Harwin M20 series, which specializes in 2.54 mm pitch connectors. The series offers various configurations including surface mount and through-hole options. The M20-7851442 specifically addresses needs for high-count, durable interconnects in standard industrial form factors.

Replacement Considerations

No direct public substitute part numbers are confirmed for this specific obsolete variant. Evaluate other M20 series sockets with identical pin counts and pitch if availability permits.