M20-7840842

Overview

The M20-7840842 is a rectangular connector from the Harwin M20 series, classified as a socket assembly. It features a single row with eight positions and a mating pitch of 0.100 inches (2.54 mm). Designed for through-hole mounting, it utilizes printed circuit board tails for termination. The contacts are female sockets with gold plating on the mating interface and tin plating on the tail. Constructed with phosphor bronze contacts and black polyamide insulation rated UL94 V-0, this component supports a maximum current of 3A per contact at 250V. It operates within a temperature range of -40°C to 105°C.

Feature Summary

• Features a single-row configuration with eight female socket contacts designed for reliable signal and power transmission.
• Utilizes a push-pull locking mechanism to ensure secure mating connections between header and socket assemblies.
• Incorporates PCB tail termination style for direct surface mounting onto printed circuit boards.
• Constructed with high-temperature resistant polyamide insulation and corrosion-resistant gold-plated contacts.

Applications

• General electronic interconnects requiring robust board-to-board connections
• Industrial control systems utilizing standard 2.54mm pitch interfaces
• Consumer electronics assemblies needing reliable through-hole socket solutions

Procurement Notes

Verify the specific ordering suffix against the official Harwin datasheet to confirm exact plating thickness and material specifications. Ensure compatibility with corresponding M20 series headers regarding stacking height and mechanical retention. Confirm RoHS compliance status for the specific production batch prior to integration into regulated supply chains.

Selection Notes

Select this component when a single-row, eight-position through-hole socket is required for 2.54mm pitch applications. Consider the M20 series' push-pull locking feature for enhanced connection security compared to standard friction-lock connectors. Evaluate the thermal rating of 105°C against the operational environment requirements. Ensure the PCB layout accommodates the specific tail dimensions for proper soldering and mechanical stability.

Part Context

This part belongs to the Harwin M20 series, a family of high-reliability connectors known for their push-pull locking system. The series offers various configurations including single and double rows with different pin counts. The M20-7840842 specifically addresses needs for compact, single-row through-hole socket assemblies in space-constrained designs requiring secure mating.

Replacement Considerations

M20-7840846