305-078-555-203

Edgeboard Connectors Overview

The EDAC 305-078-555-203 is a standard card edge connector featuring 78 positions in a dual-row configuration. It utilizes a 3.96 mm (0.156 inch) contact spacing and accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). The component employs gold-plated copper alloy contacts for reliable signal transmission. Designed for panel mounting, it operates within a temperature range of -40°C to +105°C and supports a continuous current rating of 5A.

Edgeboard Connectors Feature Summary

• Accepts polarizing keys for secure board alignment
• Features low-profile insulator body design
• Utilizes gold-plated contacts for corrosion resistance

Edgeboard Connectors Applications

• Industrial control system interconnects
• Telecommunications equipment backplanes
• High-density electronic module connections

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against official EDAC documentation to ensure correct termination style and housing material. Confirm that the required polarizing keys are sourced separately if mechanical locking is necessary for the application. Cross-reference the operating temperature limits with environmental specifications before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this model when high pin density is required alongside robust mechanical stability. The 3.96 mm pitch accommodates standard board thicknesses while maintaining electrical integrity. Ensure compatibility with mating edge cards regarding row count and contact plating requirements for optimal performance.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of standard card edge connectors. The series is engineered for demanding environments requiring reliable electrical connections between rigid PCBs and backplanes. The specific part number denotes a 78-position variant optimized for dual-edge card applications.

Edgeboard Connectors Replacement Considerations

Direct substitutes include other EDAC 305 series variants with matching position counts and pitch dimensions. Verify equivalent current ratings and insulation resistance values when considering alternative manufacturers' components.