305-078-556-502

Edgeboard Connectors Overview

The EDAC Inc. 305-078-556-502 is a dual-edge female card edge connector designed for vertical panel mounting. It features 78 positions with a contact spacing of 0.156 inches (3.96mm) and a row spacing of 0.140 inches (3.56mm). The connector accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57mm). Constructed with copper alloy contacts featuring gold plating, it provides a continuous current rating of 5A. The insulator body is green thermoplastic, ensuring compliance with RoHS3 standards.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Low profile insulator body design suitable for space-constrained applications
• Dual-edge female configuration with gold-plated copper alloy contacts

Edgeboard Connectors Applications

• Vertical panel mount interconnect systems
• Standard card edge connector applications requiring polarizing key support
• Electronic assemblies utilizing 0.062 inch nominal thickness PCBs

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix to ensure correct contact spacing and board thickness compatibility. Confirm RoHS3 compliance status if required by project specifications. Check manufacturer documentation for precise dimensional tolerances and mating interface requirements before integration.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge female connector with polarizing key capability is required. Ensure the target PCB thickness matches the 0.062 inch nominal specification. Verify that the 5A current rating and voltage withstand capabilities meet the system electrical requirements.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and mounting styles. The 305-078 variant specifically provides 78 positions, balancing high density with standard spacing dimensions for reliable signal transmission.

Edgeboard Connectors Replacement Considerations

Cross-reference with other 305-series parts for alternative position counts. Verify that substitute components maintain the same 0.156-inch spacing and 0.062-inch board thickness acceptance criteria.