305-028-521-278

Edgeboard Connectors Overview

The EDAC Inc. 305-028-521-278 is a standard card edge connector from the 305 series, designed for dual-edge board applications. It features 28 positions with a 3.96 mm (0.156 inch) pitch across two rows. The connector utilizes gold-plated copper alloy contacts and a thermoplastic housing. It supports a current rating of 5 A and operates within a temperature range of -40°C to +105°C. The unit employs solder lug termination and includes in-line card guides for panel mounting.

Edgeboard Connectors Feature Summary

• Dual-row configuration with gold-plated copper alloy contacts for reliable signal transmission
• Integrated in-line card guides facilitate secure panel mounting and board alignment
• Thermoplastic polyester housing provides structural integrity and electrical insulation

Edgeboard Connectors Applications

• Industrial control system interconnections
• Telecommunications equipment backplanes
• Test and measurement instrument interfaces

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against the manufacturer's official ordering guide to confirm exact mechanical dimensions and termination styles. Ensure compatibility with the target PCB thickness and panel cutout requirements before procurement. Cross-reference the RoHS compliance status with the latest datasheet revision to meet regulatory standards.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge card interface with a 3.96 mm pitch is required. The integrated card guides simplify assembly compared to guide-less variants. Confirm that the 5 A current rating and thermoplastic material properties align with the environmental conditions and electrical loads of the specific application design.

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 options. The 305-028-521-278 specifically denotes a 28-position dual-row variant with solder lug termination and panel-mount capabilities, distinguishing it from surface-mount or single-row alternatives within the same family.

Edgeboard Connectors Replacement Considerations

Compatible substitutes include other EDAC 305 series parts with matching 28-position dual-row configurations and 3.96 mm pitch. Verify mechanical fitment and contact plating specifications when considering alternative manufacturers.