305-078-556-258

Edgeboard Connectors Overview

The EDAC Inc. 305-078-556-258 is a standard card edge connector featuring 78 positions with a 3.96 mm (0.156 inch) contact spacing and 3.56 mm row spacing. Designed for dual-edge female connections, it accommodates printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). The component utilizes gold-plated copper alloy contacts and a thermoplastic insulator body, rated for 5 A current at temperatures ranging from -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-edge female configuration for secure board insertion
• Gold-plated contacts ensure reliable signal transmission
• Low-profile insulator body design for space-constrained applications

Edgeboard Connectors Applications

• Industrial control panel interconnections
• Telecommunications equipment backplanes
• Computer peripheral interface modules

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against official EDAC documentation to confirm exact plating thickness and material specifications. Ensure compatibility with the target PCB thickness of 1.57 mm before integration. Cross-reference the 78-position count and 3.96 mm pitch with system requirements to prevent mechanical mismatch during assembly.

Edgeboard Connectors Selection Notes

Select this component when a high-density dual-edge connection is required for 0.062-inch thick boards. The 3.96 mm pitch offers robust mechanical stability compared to finer pitches. Verify that the 5 A current rating and operating temperature range meet the environmental demands of the intended deployment scenario.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series provides various position counts while maintaining consistent 3.96 mm spacing and 1.57 mm board thickness compatibility. It serves as a modular solution for vertical panel mounting in electronic systems requiring durable edge-board interfaces.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include parts with identical pitch and board thickness but different position counts, such as the 305-070-556-568 or 305-054-556-278. Verify that any alternative maintains the dual-edge female configuration and gold plating specification.