305-028-520-278

Edgeboard Connectors Overview

The EDAC Inc. 305-028-520-278 is a standard card edge connector from the 305 Series, designed for dual-edge PCB applications. It features 28 positions with a 3.96 mm pitch and a 1.57 mm board thickness compatibility. The component utilizes gold-plated copper alloy contacts and a green thermoplastic polyester insulator. Rated for 5 A current and 1800 VACrms voltage, it operates between -40°C and +105°C. This vertical panel-mount receptacle ensures reliable electrical interconnection in demanding environments.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure positioning
• Provides 5A continuous current rating and 1800VACrms dielectric strength
• Features low-profile insulator body with gold-plated copper alloy contacts

Edgeboard Connectors Applications

• Dual-edge printed circuit board interconnections
• Panel-mounted electronic assemblies requiring polarizing key support
• Industrial control systems operating within specified temperature ranges

Edgeboard Connectors Procurement Notes

Verify part number accuracy against official EDAC documentation before procurement. Confirm that the specific suffix matches required mounting style and contact configuration. Check regional availability as distribution may be restricted. Ensure compliance with RoHS requirements if applicable to your project specifications.

Edgeboard Connectors Selection Notes

Select this connector when a 28-position dual-row interface is required with a 3.96 mm pitch. Consider the 1.57 mm nominal board thickness compatibility and vertical panel-mount orientation. Verify that the 5A current rating and 1800VACrms insulation resistance meet system electrical requirements.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 Series of standard card edge connectors. The series offers various position counts and mounting options, maintaining consistent 3.96 mm spacing. The 305-028-520-278 specifically addresses applications needing 28 positions with dual-edge acceptance capabilities.

Edgeboard Connectors Replacement Considerations

Consult the EDAC 305 Series ordering guide for verified substitute part numbers. Cross-reference position count, pitch, and mounting style to ensure functional equivalence. Do not assume interchangeability based on series alone; verify all mechanical and electrical parameters.