305-020-521-501

Edgeboard Connectors Overview

The EDAC Inc. 305-020-521-501 is a standard card edge connector from the 305 Series, designed for dual-row applications with a 20-position configuration. It features a 3.96mm (0.156 inch) pitch and accepts board thicknesses ranging from 1.37mm to 1.78mm. The connector utilizes female half-beam contacts made of copper alloy with gold plating for reliable signal transmission. Rated for 5A continuous current and 1800VACrms insulation voltage, it operates within a temperature range of -40°C to +105°C. The housing is constructed from green thermoplastic polyester, ensuring durability and compliance with RoHS3 standards.

Edgeboard Connectors Feature Summary

• Dual-row female contact configuration with gold-plated copper alloy half-beam terminals
• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Thermoplastic polyester housing providing high insulation resistance and thermal stability

Edgeboard Connectors Applications

• High-density electronic module interconnections
• Industrial control system backplanes
• Telecommunications equipment card slots

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against the official EDAC ordering guide to ensure correct mounting style and termination type. Confirm that the target printed circuit board thickness falls within the specified 1.37mm to 1.78mm range to guarantee proper mechanical engagement. Check for any regional distribution restrictions or lead time variations prior to finalizing procurement plans.

Edgeboard Connectors Selection Notes

Select this component when a robust dual-row interface with a 3.96mm pitch is required for modules up to 20 positions. Ensure the application environment stays within the -40°C to +105°C operating range. Consider the 5A current rating and 1800VACrms dielectric strength for safety-critical designs requiring reliable electrical isolation and high current carrying capacity.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, which provides versatile card edge solutions with various mounting options including panel and PCB mount styles. The series supports both straight and right-angle configurations, catering to diverse spatial constraints in electronic assemblies while maintaining consistent electrical performance across different position counts.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include 305-020-500-203 and 305-020-520-501, provided they match the required mounting orientation and termination method. Verify dimensional compatibility and pinout consistency before swapping components to avoid rework.