305-028-521-208

Edgeboard Connectors Overview

The EDAC Inc. 305-028-521-208 is a standard card edge connector header from the 305 Series, designed for vertical panel mounting. It features a dual-row configuration with 28 positions and a contact spacing of 3.96 mm (0.156 inches). The row spacing is 3.56 mm, accommodating printed circuit boards with a nominal thickness of 1.57 mm. The contacts are gold-plated copper alloy, rated for 5 A current. The housing is made of thermoplastic, supporting an operating temperature range from -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-row configuration with 3.96 mm pitch for high-density connections
• Vertical panel mount style with solder pin termination
• Gold-plated copper alloy contacts ensuring reliable conductivity
• Thermoplastic insulator body compatible with 1.57 mm PCB thickness

Edgeboard Connectors Applications

• Industrial control systems requiring robust panel-mounted interfaces
• Communication equipment utilizing standard card edge modules
• Medical devices needing reliable vertical interconnects
• Energy infrastructure hardware with specific board thickness requirements

Edgeboard Connectors Procurement Notes

Verify the exact position count and series designation against official EDAC documentation before procurement, as suffix variations may indicate different mechanical or electrical specifications. Confirm that the 28-position variant matches the design-in requirements. Ensure compatibility with the target PCB thickness of 1.57 mm and verify that the vertical panel mount orientation aligns with the enclosure design constraints for proper installation.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge connector with 3.96 mm spacing is required for panel-mounted applications. The 28-position count suits designs needing moderate I/O density in a vertical form factor. Consider the 1.57 mm board thickness constraint and the -40°C to +105°C operating range. Verify that the gold-plated contacts meet the environmental durability needs for the intended industrial or commercial deployment scenario.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, which offers various mounting options and row configurations. The series is characterized by its 3.96 mm contact spacing and low-profile insulator bodies. The 305-028-521-208 specifically denotes the 28-position variant within this standardized family, providing a consistent interface solution across multiple EDAC product lines for general-purpose electronic interconnections.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include parts with identical pitch and row count but different position numbers, such as the 305-038-521-208 or 305-048-521-208, provided the mechanical footprint allows. Cross-series replacements require matching the 3.96 mm pitch and 1.57 mm board thickness constraints. Verify that any alternative maintains the dual-row vertical panel mount configuration and equivalent current rating.