M20-7810945R

Overview

The Harwin M20-7810945R is an 18-position dual-in-line surface mount female socket connector from the M20 series. It features a 2.54 mm (0.100 inch) pitch and is designed for board-to-board applications. The contacts are gold-plated to ensure reliable signal transmission. Rated at 3A current, it operates within a temperature range of -40°C to +105°C. This component utilizes a compact SMT footprint suitable for high-density PCB layouts.

Feature Summary

• Dual-in-line configuration with 18 positions for increased connectivity density
• Gold-plated contacts provide corrosion resistance and stable electrical performance
• Surface mount technology enables automated assembly and low profile installation

Applications

• High-density board-to-board interconnections in industrial electronics
• Compact consumer device internal circuitry requiring surface mount solutions
• Automotive control modules with space-constrained PCB layouts

Procurement Notes

Verify the specific suffix 'R' indicates reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure compatibility with standard lead-free soldering profiles used in modern surface mount processes. Cross-reference the full part number to distinguish from similar M20 series variants with different pin counts or plating options.

Selection Notes

Select this component for applications requiring a 2.54 mm pitch surface mount female header. The 18-position DIL format suits designs needing moderate channel counts in a small area. Gold plating is preferred for environments where contact reliability is critical. Compare against through-hole alternatives if mechanical retention strength is a primary design constraint over profile height.

Part Context

This connector belongs to the Harwin M20 series, known for its robust construction and versatility in both through-hole and surface mount formats. The series supports various row configurations and contact counts, making it a standard choice for general-purpose electronic interconnects. The M20-7810945R specifically addresses the need for reliable SMT female sockets in compact assemblies.

Replacement Considerations

Direct substitutes include other 18-position 2.54mm pitch SMT female headers from manufacturers such as Samtec or Molex. Verify that replacement parts match the current rating, operating temperature range, and gold plating specifications. Ensure the mating male pin dimensions align with the socket's acceptance criteria to maintain connection integrity.