M20-7881446

Overview

The Harwin M20-7881446 is a rectangular connector from the M20 series, classified as a header receptacle with female sockets. It features a dual in-line (DIL) configuration with 14 positions per row across two rows, totaling 28 contacts. The connector utilizes a 2.54 mm pitch for mating interfaces and is designed for horizontal mounting orientation. It employs through-hole termination for secure PCB attachment. The housing is constructed from black polyamide material rated UL94 V-0 for flammability. Electrical specifications include a current rating of 3 Amperes per contact and an operating temperature range spanning from -40°C to +105°C.

Feature Summary

• Horizontal dual in-line socket configuration for board-to-board or cable applications
• Through-hole termination ensures robust mechanical fixation on printed circuit boards
• Polyamide insulation housing provides high thermal stability and UL94 V-0 flame resistance

Applications

• High-density PCB assemblies requiring low-profile interconnects
• Board-to-board connections in industrial control systems
• Cable-to-board interface modules in consumer electronics

Procurement Notes

Verify the specific suffix code against the official Harwin datasheet to confirm the exact pin count and orientation variant. Ensure compatibility with mating male headers regarding pitch and contact geometry. Check for RoHS compliance status if required by project regulations. Confirm availability through authorized distributors as lead times may vary.

Selection Notes

Select this component when a horizontal female socket arrangement is required for space-constrained designs. The 2.54 mm pitch aligns with standard industry spacing for legacy and general-purpose connectors. Consider the 3A current rating for power distribution needs within the specified thermal envelope. Verify that the through-hole mounting style matches the target PCB fabrication capabilities.

Part Context

This part belongs to the Harwin M20 series, a widely used line of rectangular connectors known for reliability and versatility. The M20 family offers various configurations including vertical and horizontal orientations with different pin counts. This specific model represents the horizontal socket variant, complementing the series' male header counterparts for complete interconnect solutions.

Replacement Considerations

Direct substitutes must match the 2.54 mm pitch, 14+14 position count, horizontal orientation, and female socket type. Verify that alternative manufacturers provide identical housing dimensions and terminal locking mechanisms to ensure mechanical interchangeability without PCB redesign.