M20-7861842

Overview

The M20-7861842 is a rectangular connector from the Harwin M20 series, classified as a socket assembly header. It features an 18-position configuration with a single row and a 2.54 mm (0.1 inch) pitch. Designed for surface mount technology, it utilizes a bottom entry style for wire housing integration. The component employs a push-pull locking mechanism to secure mating connections. Contact materials are specified as phosphor bronze with gold plating on the mating interface and tin plating on the tail for soldering. The insulator is constructed from black polyamide (PA6T) nylon 6T, rated UL94 V-0 for flammability. It operates within a temperature range of -40°C to 105°C.

Feature Summary

• Surface mount socket assembly designed for board-to-board or wire harness applications
• Push-pull locking system ensures secure mechanical retention during operation
• Bottom entry design facilitates organized cable routing and connection
• Gold-plated contacts provide reliable conductivity and corrosion resistance

Applications

• Industrial control systems requiring robust interconnects
• Consumer electronics with space-constrained PCB layouts
• Automotive electronic modules needing vibration-resistant connections
• Telecommunications equipment utilizing standardized pin pitches

Procurement Notes

Verify the obsolete lifecycle status before procurement planning. Confirm availability through authorized distributors as standard stock may be limited. Ensure compatibility with existing PCB footprint designs. Check for potential supply chain delays due to end-of-life management. Validate that the surface mount package aligns with manufacturing capabilities.

Selection Notes

Select this component when a single-row, 18-position surface mount socket is required. The 2.54 mm pitch matches standard industry spacing for easy integration. Consider the bottom entry orientation for optimal cable management needs. Evaluate the push-pull feature against manual insertion requirements. Verify thermal ratings suit the operational environment constraints.

Part Context

Part of the M20 series by Harwin Inc., known for high-density interconnect solutions. The series offers various configurations including headers, sockets, and wire housings. This specific model represents a socket variant optimized for surface mounting. It complements male header counterparts within the same ecosystem for complete connectivity solutions.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Due to the obsolete status, direct replacements may require redesigning the PCB footprint. Consult manufacturer resources for last-time buy options or equivalent series alternatives.