305-028-521-558

Edgeboard Connectors Overview

The EDAC Inc. 305-028-521-558 is a standard card edge connector from the 305 series, designed for dual-side female connections with 28 positions. It features a 3.96 mm (0.156 inch) contact spacing and accepts printed circuit boards with a nominal thickness of 1.57 mm. The connector utilizes gold-plated copper alloy contacts to ensure reliable signal transmission and corrosion resistance. Rated for 5 A continuous current, it supports through-hole mounting in a vertical orientation. The insulator body is constructed from thermoplastic material, providing durability and electrical insulation suitable for industrial environments.

Edgeboard Connectors Feature Summary

• Dual-edge female configuration for secure board insertion
• Gold-plated contacts for enhanced conductivity and longevity
• Vertical panel mount design for space-efficient integration
• Thermoplastic housing for robust mechanical stability

Edgeboard Connectors Applications

• Industrial control systems requiring high-reliability interconnects
• Telecommunications equipment backplanes
• Automotive electronic modules
• Test and measurement instrumentation

Edgeboard Connectors Procurement Notes

Verify that the specific part number matches the required 28-position count and dual-edge specification. Confirm that the PCB thickness aligns with the 1.57 mm acceptance range. Ensure the mounting style and contact plating meet the application's environmental requirements. Cross-reference the datasheet for precise dimensional tolerances before finalizing the order.

Edgeboard Connectors Selection Notes

Select this model when a dual-sided connection with 28 pins is necessary. The 3.96 mm pitch suits applications where standard spacing is preferred over finer geometries. The 5 A rating indicates suitability for moderate power distribution alongside signal lines. Consider the vertical mounting profile for panel integration constraints.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of card edge connectors, which are widely used in modular electronic designs. The series offers various position counts and configurations to accommodate different board densities. The 305-028 variant specifically addresses needs for medium-density dual-side connections with standardized spacing.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include other 305-series models with matching pin counts or compatible spacing. Verify that any alternative maintains the 3.96 mm pitch and 1.57 mm board thickness compatibility. Check if the replacement offers identical current ratings and mounting styles.