M20-7893146

Overview

The Harwin M20-7893146 is a vertical pin header connector from the M20 series, designed for through-hole PCB mounting. It features a 2.54 mm (0.100 inch) pitch and provides 14 positions in a single row configuration. The contacts are male pins with tin plating, manufactured from phosphor bronze to ensure reliable electrical performance. The housing is constructed from black nylon, offering UL94 V-0 flammability rating. This component supports board-to-board or cable applications with a rated current of 3A per contact.

Feature Summary

• Vertical pin header design optimized for through-hole surface mounting
• Single-row configuration with 2.54 mm spacing for standard density layouts
• Tin-plated phosphor bronze contacts for corrosion resistance and conductivity
• Black nylon insulation housing meeting UL94 V-0 safety standards

Applications

• Embedded PC motherboard interconnects
• Industrial control system signal routing
• Consumer electronics internal wiring
• Communication equipment backplanes

Procurement Notes

Verify the specific position count and row configuration against the official Harwin datasheet before procurement, as part numbers within the M20 series vary significantly by pin count and orientation. Confirm that the tin-plated finish meets the environmental requirements of the target assembly process. Ensure the through-hole footprint on the PCB matches the specified lead dimensions to guarantee proper mechanical retention during soldering.

Selection Notes

Select this component when a single-row, vertical male header is required for low-current signal transmission. The 2.54 mm pitch is suitable for general-purpose digital and analog signals where high-density multi-row connectors are unnecessary. Consider the 3A current rating per contact to ensure adequate thermal management for the intended load. Verify compatibility with mating female sockets from the same M20 series family.

Part Context

This connector belongs to the Harwin M20 series, a widely adopted industrial standard for PCB interconnections. The series is characterized by its compact profile and robust mechanical design, making it a common choice for embedded systems and large electronic assemblies. The M20 line offers various configurations including single and double rows, with options for both through-hole and surface-mount technologies.

Replacement Considerations

Compatible substitutes include other 14-position, 2.54 mm pitch vertical headers from manufacturers such as Samtec or Molex, provided they match the pin length and housing height specifications. Ensure any replacement maintains the same current rating and flammability classification. Cross-reference the mating socket dimensions to guarantee seamless integration without mechanical interference.