305-028-520-258

Edgeboard Connectors Overview

The EDAC Inc. 305-028-520-258 is a standard card edge connector from the 305 series, designed for panel mount applications with a vertical orientation. It features 28 positions in a dual female configuration, utilizing a 3.96 mm (0.156 inch) pitch. The connector accepts non-specified dual-edge cards with a thickness range of 1.37 mm to 1.78 mm. Contacts are made of copper alloy with gold plating and terminate via solder pins. It supports a continuous current rating of 5 A and operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure positioning
• Provides high voltage isolation capability rated at 1800VACrms
• Features flush mount flange design with top opening for panel integration

Edgeboard Connectors Applications

• Panel-mounted electronic interface connections
• Industrial control system board interconnects
• Telecommunications equipment backplane connections

Edgeboard Connectors Procurement Notes

Verify the specific suffix code against official EDAC documentation to confirm exact contact termination style and insulation color. Ensure the target PCB or card edge thickness falls within the specified 1.37 mm to 1.78 mm range before procurement. Confirm that the required polarizing key type matches the connector's acceptance specifications for proper mechanical alignment during assembly.

Edgeboard Connectors Selection Notes

Select this component when a vertical, panel-mount solution is required for dual-edge card interfaces. The 3.96 mm pitch accommodates larger signal traces compared to finer pitches. Verify that the 5 A current rating meets the application's electrical load requirements. Consider the 1800VACrms dielectric strength if high-voltage isolation between contacts is necessary for safety compliance.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and termination options while maintaining consistent 3.96 mm pitch dimensions. The 305-028-520-258 specifically denotes a 28-position variant with gold-plated copper alloy contacts and solder pin termination, suitable for robust industrial environments.

Edgeboard Connectors Replacement Considerations

Direct substitutes include other EDAC 305 series parts with matching 28 positions and 3.96 mm pitch, such as 305-028-520-201 or 305-028-520-508, provided the termination style and flange configuration align with the existing mechanical design constraints.