M20-9731045

Headers, Male Pins Overview

The Harwin M20-9731045 is a single-row male pin header connector from the M20 series, designed for through-hole mounting. It features 10 positions with a 2.54 mm (0.1 inch) pitch and straight vertical orientation. The contacts are gold-plated copper alloy, rated for 3 A current and 750 VAC dielectric voltage. The housing is constructed from high-temperature nylon with UL 94V-0 flammability rating. Key dimensions include a 3 mm PCB termination length and a 7 mm mating pin height.

Headers, Male Pins Feature Summary

• Gold-plated contacts ensure reliable signal transmission and corrosion resistance
• High-temperature UL 94V-0 nylon housing provides thermal stability
• Single-row straight design facilitates standard vertical board-to-board connections

Headers, Male Pins Applications

• Board-to-board interconnections
• Wire-to-board assemblies
• General electronic circuit prototyping

Headers, Male Pins Procurement Notes

Verify the specific contact plating finish when sourcing replacements, as the M20 series includes tin and gold variants with distinct part number suffixes. Confirm that the replacement component matches the 10-position count and 2.54 mm pitch to ensure mechanical compatibility. Check datasheets for mating height specifications to guarantee proper engagement with the counterpart connector.

Headers, Male Pins Selection Notes

Select this component for applications requiring robust electrical performance in high-temperature environments due to its UL 94V-0 rated housing. The gold plating makes it suitable for sensitive signal lines where low contact resistance is critical. Ensure the design accommodates the 3 mm tail length for adequate solder joint formation on the PCB.

Headers, Male Pins Part Context

This connector belongs to the Harwin M20 series, which offers various row counts, pitches, and plating options. The M20-973 prefix specifically denotes gold-plated contacts, distinguishing it from the M20-977 series which uses tin plating. This series is widely used in industrial and consumer electronics for secure interconnects.

Headers, Male Pins Replacement Considerations

• M20-9771045

Headers, Male Pins FAQ

What is the difference between M20-9731045 and M20-9771045?

The primary difference is the contact plating. M20-9731045 features gold-plated contacts, while M20-9771045 has tin-plated contacts. Both share the same 10-position, 2.54 mm pitch, and physical dimensions.

What is the maximum operating temperature for this connector?

The connector utilizes a high-temperature nylon housing rated UL 94V-0, allowing it to withstand elevated temperatures typical of reflow soldering processes and operational environments, though specific continuous operating limits should be verified against the full datasheet.