M20-7831942

Overview

The M20-7831942 is a rectangular board-to-board receptacle connector from the Harwin M20 series. It features 38 positions with a 0.100 inch (2.54mm) row spacing and 0.100 inch (2.54mm) pin spacing. The connector utilizes two rows of female sockets designed for through-hole solder termination. Contact surfaces are gold-plated, while termination pins are tin-plated. The housing is constructed from black polyamide (PA6T) nylon rated UL94 V-0. It supports a current rating of 3A and a voltage rating of 1000V, operating within a temperature range of -40°C to 105°C.

Feature Summary

• Push-pull locking mechanism ensures secure mating between boards or cable stacks.
• Gold contact plating provides reliable electrical conductivity and corrosion resistance.
• UL94 V-0 rated polyamide insulation offers high thermal stability and fire safety.

Applications

• Industrial control systems requiring robust interconnects
• Telecommunications equipment signal routing
• General-purpose board-to-board stacking

Procurement Notes

Verify that the specific part number matches the required 38-position configuration and 2-row layout before ordering. Confirm that the manufacturing source is an authorized distributor to ensure component authenticity. Check for RoHS compliance status as indicated in official documentation, noting potential variations in lead content for specific terminations. Ensure storage conditions maintain integrity of the gold contacts and plastic housing prior to installation.

Selection Notes

Select this connector when a 2.54mm pitch female socket is required for vertical board stacking. The push-pull design simplifies assembly compared to screw-lock alternatives. Verify that the PCB footprint accommodates the straight through-hole termination style. Consider the 1000V rating for applications requiring higher isolation than standard low-voltage connectors. Ensure mating header components match the 0.100 inch spacing and gender specifications.

Part Context

This component belongs to the Harwin M20 series, which specializes in 2.54mm pitch rectangular connectors. The M20 line includes various configurations for headers, receptacles, and wire housings. This specific model represents a standard female socket variant designed for high-reliability industrial environments. The series is known for its push-pull locking feature and robust mechanical performance in demanding applications.

Replacement Considerations

No public confirmed substitute part numbers are available for this specific component. Direct replacement requires identical specifications including 38 positions, 2.54mm pitch, and push-pull locking mechanism. Cross-model substitution is not recommended without verifying mechanical fit and electrical ratings against original design requirements.