305-070-520-278

Edgeboard Connectors Overview

The EDAC Inc. 305-070-520-278 is a standard card edge connector header featuring 70 positions with a 3.96 mm pitch and dual-row configuration. Designed for vertical panel mounting, it utilizes solder pin termination and gold-plated copper alloy contacts to ensure reliable signal transmission. The component accommodates printed circuit boards with a nominal thickness of 1.57 mm and operates within a temperature range of -40°C to +105°C. It provides a continuous current rating of 5 A and an insulation resistance of 5 GOhms, supporting applications requiring robust electrical connectivity in industrial environments.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Features a low-profile insulator body constructed from thermoplastic material
• Provides high voltage isolation capability rated at 1800VACrms

Edgeboard Connectors Applications

• Industrial control systems requiring robust card edge interfaces
• Telecommunications equipment utilizing standardized connector arrays
• Automotive electronics demanding high reliability under thermal stress

Edgeboard Connectors Procurement Notes

Verify the specific suffix code against official EDAC documentation to confirm contact plating thickness and material specifications. Ensure compatibility with the target PCB thickness of 1.57 mm before integration. Confirm that the selected variant meets the required environmental operating temperatures and current ratings for the intended application scope.

Edgeboard Connectors Selection Notes

Select this model when a 70-position dual-row interface is required with a 3.96 mm spacing. Consider the vertical panel mount style and solder pin termination for fixed installations. Evaluate the 5 A current capacity and 1800VACrms dielectric strength against system requirements to ensure adequate safety margins for the specific electrical load.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts while maintaining consistent 3.96 mm pitch and mechanical dimensions. The 305-070-520-278 variant specifically addresses needs for higher density connections in compact panel-mounted assemblies.

Edgeboard Connectors Replacement Considerations

Cross-reference part numbers such as 305-070-556-568 or 305-070-500-268 for alternative configurations within the same series. Verify that substitute parts match the 70-position count, 3.96 mm pitch, and vertical mounting orientation before implementation.