305-056-556-502

Edgeboard Connectors Overview

The EDAC Inc. 305-056-556-502 is a dual-edge female card edge connector with 56 positions and a 0.156-inch (3.96mm) pitch. It features gold-plated contacts, a thermoplastic housing, and supports board thicknesses of 0.054 to 0.070 inches. Rated for 5A continuous current and 1800VACrms insulation, it operates between -40°C and +105°C. The component accepts polarizing keys and utilizes half-beam terminals for reliable solder termination.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure alignment
• Provides high dielectric strength with 1800VACrms insulation rating
• Features gold-plated half-beam terminals for durable signal transmission

Edgeboard Connectors Applications

• High-density electronic interconnect systems
• Industrial control panel connections
• Telecommunications equipment backplanes

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against official EDAC documentation to ensure correct contact plating and housing color specifications. Confirm that the target application requires the standard 0.156-inch pitch configuration. Cross-reference the 56-position count with the design layout to prevent mismatched pin assignments during assembly.

Edgeboard Connectors Selection Notes

Select this model when a dual-edge female interface is required for boards up to 0.070 inches thick. Ensure the design accommodates the 0.156-inch spacing and allows space for polarizing key installation. Verify thermal requirements align with the 105°C maximum operating temperature limit.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and mounting styles. The 305-056 variant specifically provides a 56-pin interface suitable for applications requiring moderate density with robust mechanical retention.

Edgeboard Connectors Replacement Considerations

Consult the EDAC 305 Series Ordering Guide for direct substitutes with different position counts or terminal configurations. Verify compatibility with existing polarizing key standards before substituting.