M20-7823942

Overview

The M20-7823942 is a rectangular socket connector from the Harwin M20 series, designed for board-to-board or cable stacking applications. It features a 39-position configuration with a 2.54mm (0.1 inch) pitch and a single row arrangement. The component utilizes through-hole termination for secure PCB mounting. Contact surfaces are finished with gold plating to ensure reliable signal transmission. Constructed with flame-retardant polyamide insulation rated UL94 V-0, it supports operating temperatures ranging from -40°C to +105°C.

Feature Summary

• Single-row receptacle design for compact vertical stacking
• Gold-plated contacts for enhanced conductivity and corrosion resistance
• Through-hole solder termination for robust mechanical fixation
• High-temperature resistant polyamide housing material

Applications

• Industrial control systems requiring high-density interconnects
• Telecommunications equipment backplanes
• General-purpose electronic assemblies needing reliable signal routing

Procurement Notes

Verify component obsolescence status prior to procurement as this part may be discontinued. Confirm that the single-row 39-position specification matches the target PCB footprint. Ensure compatibility with mating pin headers regarding contact gender and alignment tolerances. Validate that the through-hole mounting method aligns with the assembly process capabilities.

Selection Notes

Select this component when a single-row, high-pin-count solution is required for space-constrained designs. The 2.54mm pitch ensures compatibility with standard industry spacing requirements. Gold plating is preferred for environments demanding long-term connection stability without oxidation. Verify that the current rating and voltage withstand capabilities meet the specific circuit load requirements.

Part Context

This connector belongs to the M20 series, characterized by a 2.54mm pitch and versatile mounting options. The M20 range is widely utilized in industrial and telecommunications sectors for its reliability and compact form factor. This specific model represents a legacy variant within the broader product line, often replaced by newer surface-mount or updated through-hole alternatives.

Replacement Considerations

M20-7823942 is marked as obsolete. Potential substitutes include other Harwin M20 series sockets with identical 39-position, single-row, through-hole specifications. Verify that any replacement maintains the same 2.54mm pitch, gold contact finish, and UL94 V-0 insulation rating to ensure functional equivalence.