M20-9970246

Headers, Male Pins Overview

The Harwin M20-9970246 is a 4-position, double-row vertical pin header from the M20 series. It features a 2.54 mm (0.1 inch) pitch and is designed for through-board mounting with 3 mm PCB terminations suitable for bottom entry applications. The connector utilizes brass contacts with tin plating and a nylon insulation body rated UL94 V-0. It supports board-to-board or cable connections with a current rating of 3A per contact.

Headers, Male Pins Feature Summary

• Double-row straight configuration for compact vertical interconnects
• Through-hole termination optimized for bottom entry PCB assembly
• Tin-plated brass contacts ensure reliable signal transmission
• Nylon housing provides mechanical stability and flame resistance

Headers, Male Pins Applications

• Board-to-board interconnections in dense electronic assemblies
• Bottom entry PCB mounting scenarios requiring specific termination lengths
• Cable-to-board connections utilizing standard wire harnesses
• General-purpose signal routing in industrial control modules

Headers, Male Pins Procurement Notes

Verify the exact pin count and row configuration against project requirements before ordering. Confirm that the 3mm termination length aligns with the target PCB thickness and soldering process capabilities. Ensure compatibility with mating connectors regarding pitch and contact geometry to prevent mechanical interference during assembly.

Headers, Male Pins Selection Notes

Select this component when a low-profile vertical header is required for bottom-entry PCB designs. The 2.54mm pitch offers standard spacing for general electronics, while the double-row layout maximizes connection density within a limited footprint. Consider the tin plating for cost-effective applications where high corrosion resistance is not critical.

Headers, Male Pins Part Context

This part belongs to the Harwin M20 series, a widely used line of rectangular connectors known for their reliability and versatility. The M20 series encompasses various configurations including single and double rows, different pitches, and multiple termination styles. This specific model represents a standard vertical header variant within that extensive family.

Headers, Male Pins Replacement Considerations

M20-9970246 is currently listed as an obsolete product by the manufacturer. Engineers should evaluate alternative suppliers offering equivalent 4-pin, 2.54mm pitch, double-row vertical headers with similar termination lengths. Cross-referencing datasheets for mechanical dimensions and electrical ratings is essential to ensure functional equivalence.