305-074-520-208

Edgeboard Connectors Overview

The EDAC Inc. 305-074-520-208 is a dual-row card edge connector designed for panel and through-hole mounting. It features a contact pitch of 0.156 inches (3.96mm) and a row spacing of 0.140 inches (3.56mm). The component includes 74 contacts arranged in two rows, utilizing solder tail termination for secure PCB attachment. It supports between-contact and in-contact polarizing keys to ensure proper alignment during insertion. The connector offers a continuous current rating of 5A and withstands 1800VACrms dielectric voltage, suitable for high-reliability applications requiring robust electrical performance.

Edgeboard Connectors Feature Summary

• Dual-row configuration with 74 contacts for high-density signal routing
• Accepts between-contact and in-contact polarizing keys for precise alignment
• Solder tail termination ensures reliable mechanical and electrical connection
• Supports standard PC board thicknesses with specific row spacing

Edgeboard Connectors Applications

• Industrial control systems requiring high-voltage isolation
• Telecommunications equipment with dense I/O requirements
• Test and measurement instrumentation boards
• Automotive electronics modules

Edgeboard Connectors Procurement Notes

Verify the part number against official EDAC documentation to confirm the specific series and contact count. Ensure compatibility with the intended PCB stack-up and polarizing key requirements. Check for any recent updates to the datasheet regarding material specifications or environmental ratings. Confirm that the solder tail dimensions match the target fabrication capabilities. Validate that the voltage and current ratings meet the system's operational demands before procurement.

Edgeboard Connectors Selection Notes

Select this connector when a dual-row card edge interface with 74 positions is required. The 0.156-inch pitch allows for moderate density while maintaining robust mechanical stability. Consider the polarizing key options if misalignment prevention is critical. Ensure the mounting style aligns with the enclosure design, as this model supports both panel and through-hole installation. Verify that the 5A current rating suffices for the application's power distribution needs.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 Series, which focuses on card edge connectors with standardized spacing. The series typically offers various contact counts and mounting options. The 305-074-520-208 variant specifically provides a dual-row layout optimized for applications needing balanced signal and power routing. It shares common design principles with other parts in the 305 family, such as consistent pitch and termination methods.

Edgeboard Connectors Replacement Considerations

Direct substitutes must match the 74-contact count, dual-row configuration, and 0.156-inch pitch. Verify that alternative components support the same 5A current rating and 1800VACrms voltage. Ensure the replacement accepts compatible polarizing keys and fits the same PCB footprint. Cross-reference with EDAC's official substitution lists for guaranteed compatibility.