M20-9981045

Headers, Male Pins Overview

The Harwin M20-9981045 is a 20-position vertical pin header from the M20 series. It features a 2-row, 10+10 double in-line configuration with a 2.54 mm (0.1 inch) pitch. Designed for through-hole mounting, it utilizes brass contacts with gold plating and a nylon insulator. The connector supports board-to-board and wire-to-board systems, rated at 3A current capacity. Operating temperature ranges from -40°C to +105°C, with a mating pin length of 6.1 mm.

Headers, Male Pins Feature Summary

• Vertical 10+10 double in-line pin header arrangement
• Gold-plated brass contacts for reliable conductivity
• Nylon housing material for structural integrity
• Through-hole solder termination method

Headers, Male Pins Applications

• Board-to-board interconnections
• Wire-to-board connections
• General electronic circuit assembly
• Industrial control modules

Headers, Male Pins Procurement Notes

Verify the specific contact plating specification against the official datasheet, as variations exist within the M20 series. Confirm that the gold-plated variant matches the design requirements for corrosion resistance and conductivity. Ensure the through-hole footprint aligns with the PCB layout specifications before finalizing procurement orders.

Headers, Male Pins Selection Notes

Select this component when a vertical, non-shrouded header with gold contacts is required. The 2.54 mm pitch ensures compatibility with standard breadboard and prototyping systems. Consider the 3A rating and temperature range for environmental suitability. Verify that the 6.1 mm mating length accommodates the target stack-up height without interference.

Headers, Male Pins Part Context

This part belongs to the Harwin M20 series, a widely used line of headers and wire housings. The M20 series offers various configurations including shrouded and unshrouded options. This specific model represents the unshrouded, vertical pin header variant, distinct from the surface-mount or angled versions available in the same product family.

Headers, Male Pins Replacement Considerations

M20-9981046 is a similar 20-pin vertical header but features tin-plated contacts instead of gold. Verify that the change in contact material meets the application's electrical and environmental requirements before substitution.