305-056-556-503

Edgeboard Connectors Overview

The EDAC Inc. 305-056-556-503 is a standard card edge connector from the 305 series, designed for panel mount applications with a vertical orientation. It features 56 positions in a dual-row configuration with a 3.96 mm (0.156 inch) pitch. The connector utilizes gold-plated copper alloy contacts and solder pin termination. It accepts PCB thicknesses between 1.37 mm and 1.78 mm and supports a continuous current rating of 5 A with a voltage rating of 1800 VACrms.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Dual female contact design for non-specified card edge boards
• Thermoplastic insulator housing with green color coding

Edgeboard Connectors Applications

• Panel-mounted electronic assemblies requiring high-voltage isolation
• Industrial control systems utilizing polarized card edge modules
• Vertical interconnect solutions for double-sided circuit boards

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm contact plating thickness, housing material variants, and mounting hardware specifications. Ensure compatibility with the target PCB stack-up and polarizing key requirements before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a dual-row, 56-position connection is required with a 3.96 mm pitch. It is suitable for applications demanding 1800 VACrms insulation and 5 A current capacity. Confirm that the mating card edge thickness falls within the 1.37 mm to 1.78 mm range and that vertical panel mounting is the preferred installation method.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and termination styles, providing versatile options for industrial and commercial electronics. The 305 series is characterized by its robust thermoplastic construction and reliable gold-plated contact performance.

Edgeboard Connectors Replacement Considerations

Consult the EDAC 305 Series Ordering Guide for direct substitutes with different position counts or termination types. Verify mechanical dimensions and electrical ratings match the original design requirements before substituting.