305-074-521-278

Edgeboard Connectors Overview

The EDAC Inc. 305-074-521-278 is a standard card edge connector designed for vertical panel mount applications. It features 74 positions arranged in a dual row configuration with a contact spacing of 0.156 inches (3.96 mm). The connector utilizes gold-plated copper alloy contacts and a green thermoplastic polyester insulator body. It accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57 mm) and employs solder pin termination. The component operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual row female connector design for non-specified dual-edge cards
• Gold-plated copper alloy contacts for reliable signal transmission
• Low profile insulator body constructed from thermoplastic polyester

Edgeboard Connectors Applications

• Industrial control systems requiring robust board-to-board connectivity
• Telecommunications equipment utilizing standard card edge interfaces
• Test and measurement instrumentation panels

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against official EDAC documentation to confirm exact plating thickness, flange characteristics, and material certifications. Ensure that the ordering information matches the required position count and row configuration for the target application. Cross-reference datasheet revisions to confirm compliance with current environmental directives and mechanical tolerances before finalizing procurement.

Edgeboard Connectors Selection Notes

Select this component when a high-density connection with 74 positions is required for vertical panel mounting. The 3.96 mm pitch accommodates standard double-sided card edges. Consider the operating temperature range and insulation resistance specifications to ensure compatibility with the electrical environment. Confirm that the PCB thickness aligns with the connector's acceptance criteria for proper mechanical engagement.

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 305-074 variant provides a specific solution for applications needing extensive I/O connections in a compact vertical form factor. It shares common design principles with other parts in the series regarding contact materials and general mechanical dimensions.

Edgeboard Connectors Replacement Considerations

Consult official EDAC substitution guides for verified alternative part numbers. Generic equivalents may not match the precise flange dimensions or contact retention forces. Verify that any substitute maintains the same 3.96 mm pitch and dual-row configuration.