305-028-556-278

Edgeboard Connectors Overview

The EDAC Inc. 305-028-556-278 is a standard card edge connector from the 305 series, designed for panel mount applications with a vertical orientation. It features 28 positions and a 3.96 mm pitch, accommodating PCBs with a nominal thickness of 1.57 mm. The contacts are constructed from copper alloy with gold plating to ensure reliable signal transmission, rated for 5 A current. The housing utilizes thermoplastic polyester insulation, providing durability in demanding environments.

Edgeboard Connectors Feature Summary

• Dual-edge contact configuration for secure board insertion
• Gold-plated copper alloy contacts for corrosion resistance
• Thermoplastic polyester housing for structural stability

Edgeboard Connectors Applications

• Industrial control systems requiring robust interconnects
• Telecommunications equipment backplanes
• Automotive electronic modules

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm pin count, plating thickness, and termination style. Ensure compatibility with the target PCB thickness of 1.57 mm before procurement. Cross-reference the RoHS compliance status with current regulatory requirements for the intended market.

Edgeboard Connectors Selection Notes

Select this component when a vertical, panel-mount solution is required for dual-edge card applications. Confirm that the 3.96 mm pitch aligns with the design layout. Evaluate the 5 A current rating against the system's power distribution needs. Consider the thermoplastic housing material properties for environmental exposure.

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 305-028-556-278 specifically addresses the need for a 28-position interface with high reliability. It serves as a critical link between circuit boards and external systems in modular designs.

Edgeboard Connectors Replacement Considerations

Consult the official EDAC cross-reference guide for verified substitutes. Generic equivalents may not match the 1.57 mm PCB thickness tolerance or the 3.96 mm pitch specification. Verify mechanical fit and electrical ratings before substitution.