305-078-500-208

Edgeboard Connectors Overview

The EDAC 305-078-500-208 is a standard card edge connector featuring 78 positions arranged in a double row configuration. It utilizes a 3.96 mm (0.156 inch) contact spacing with a 3.56 mm row pitch. Designed for vertical panel mounting, the unit accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). The contacts are gold-plated copper alloy, supporting a continuous current rating of 5 A and an insulation resistance of 5 GOhms. The insulator body is constructed from green thermoplastic material.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Features a low-profile insulator body design
• Supports dual-edge card insertion

Edgeboard Connectors Applications

• Industrial control systems requiring high-density interconnects
• Telecommunications equipment backplanes
• Test and measurement instrumentation modules

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against the manufacturer datasheet to confirm exact tail length and bend specifications. Ensure that the polarizing key requirements match the system design constraints. Confirm RoHS compliance status through official documentation before final procurement approval.

Edgeboard Connectors Selection Notes

Select this component when a 78-position interface with 3.96 mm spacing is required. Verify that the target PCB thickness aligns with the 1.57 mm nominal specification. Consider the 5 A current rating and 1800 VACrms dielectric strength for electrical safety margins.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series provides various position counts and termination options. The 305 series is characterized by its robust construction and compatibility with standard polarizing keying methods for reliable signal transmission.

Edgeboard Connectors Replacement Considerations

Cross-reference with other EDAC 305 series variants sharing identical 78-position and 3.96 mm pitch specifications. Verify mechanical footprint and terminal type compatibility before substitution.