346-040-521-203

Edgeboard Connectors Overview

The EDAC 346-040-521-203 is a standard card edge receptacle from the 346 series, designed for vertical through-hole mounting. It features 40 positions with a 3.175 mm (0.125 inch) pitch and supports a board thickness of 1.57 mm. The connector utilizes gold-plated copper alloy contacts rated for 3 A current. Its housing is constructed from green thermoplastic polyester, and it employs PC pin termination for secure PCB attachment.

Edgeboard Connectors Feature Summary

• Vertical orientation facilitates direct board insertion in panel or chassis applications.
• Gold-plated contacts ensure reliable signal transmission and corrosion resistance.
• Thermoplastic polyester housing provides structural stability and thermal endurance.

Edgeboard Connectors Applications

• Industrial control system interface modules
• Telecommunications equipment backplanes
• Medical device internal circuit connections

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix to confirm contact plating thickness, termination style, and housing color variants. Ensure the selected variant matches the required board thickness tolerance and mounting orientation constraints for the target assembly design.

Edgeboard Connectors Selection Notes

Select this component when a single-row, vertical card edge connection is required with high durability. Confirm that the 3.175 mm pitch aligns with the mating card edge profile and that the 3 A current rating meets the electrical load requirements of the application circuitry.

Edgeboard Connectors Part Context

This part belongs to the EDAC 346 series of standard card edge connectors. The series offers various position counts and termination options, providing a modular solution for connecting edge-board circuits to main substrates in electronic assemblies requiring robust mechanical retention.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include 346-040-521-102 and 346-040-521-802. Verify that alternative suffixes match the required termination type and environmental specifications before substitution.