305-078-521-207

Edgeboard Connectors Overview

The EDAC Inc. 305-078-521-207 is a standard card edge connector from the 305 series, designed for panel mounting with a vertical orientation. It features 78 positions arranged in a dual configuration with a 3.96 mm (0.156 inch) pitch. The contacts are gold-plated copper alloy, and the termination type is solder pin. The unit accepts board thicknesses between 1.37 mm and 1.78 mm, operates within a temperature range of -40°C to +105°C, and carries a 5 A current rating.

Edgeboard Connectors Feature Summary

• Dual-edge female contact configuration for secure board insertion
• Gold-plated copper alloy contacts ensure reliable conductivity
• Vertical panel mount design with solder pin termination
• Compatible with polarizing keys for precise alignment

Edgeboard Connectors Applications

• High-density electronic module interconnections
• Industrial control system backplanes
• Telecommunications equipment interfaces
• Automotive electronics assemblies

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against official EDAC documentation to confirm exact plating thickness and material specifications. Ensure compatibility with existing panel cutouts and board thickness tolerances before procurement. Confirm RoHS3 compliance status through manufacturer datasheets rather than distributor summaries.

Edgeboard Connectors Selection Notes

Select this component when high pin counts are required in a compact vertical form factor. The 3.96 mm pitch accommodates standard board widths while maintaining signal integrity. Verify that the 5 A rating meets circuit requirements and that the operating temperature range aligns with environmental conditions.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and configurations tailored for robust industrial applications. The 305-078 variant specifically addresses needs for dense connections in space-constrained panel-mounted designs.

Edgeboard Connectors Replacement Considerations

Direct substitutes include other EDAC 305 series parts with matching 78-position dual-edge specifications. Cross-reference pitch and board thickness tolerances to ensure mechanical fit. Verify electrical ratings and termination styles match original design requirements.

Edgeboard Connectors FAQ

Does this connector support polarizing keys?

Yes, the 305 series connectors accept both between-contact and in-contact polarizing keys for accurate alignment.

What is the maximum voltage rating?

The connector supports up to 1800VACrms as specified in the series documentation.