305-074-521-504

Edgeboard Connectors Overview

The EDAC Inc. 305-074-521-504 is a standard card edge connector from the 305 series, designed for panel mount installation with a vertical orientation. It features 74 positions arranged in a dual row configuration with a contact spacing of 0.156 inches (3.96 mm). The connector utilizes gold-plated copper alloy contacts and accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57 mm). Rated for 5 A continuous current, it operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Low profile insulator body constructed from thermoplastic polyester
• Provides a 5A continuous current rating with 1800VACrms dielectric strength

Edgeboard Connectors Applications

• Industrial control systems requiring robust panel-mounted interconnects
• Telecommunications equipment utilizing standardized card edge interfaces
• Automotive electronics applications demanding high reliability

Edgeboard Connectors Procurement Notes

Verify that the specific part number matches the required position count and pitch before ordering. Confirm compatibility with existing polarizing key requirements if mechanical locking is necessary. Ensure the target PCB thickness falls within the specified acceptance range to guarantee proper contact engagement and electrical performance.

Edgeboard Connectors Selection Notes

Select this component when a dual-row, 74-position interface is required with a 3.96 mm pitch. It is suitable for designs needing panel-mount termination rather than board-mount options. Consider the 5A current rating and wide operating temperature range for harsh environment deployments where standard connectors may be insufficient.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts while maintaining consistent 0.156 inch spacing and panel-mount characteristics. It serves as a reliable interface solution for connecting edge-board modules to backplanes or chassis-mounted headers in electronic assemblies.

Edgeboard Connectors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and mechanical dimensions against any alternative sources to ensure functional equivalence.