305-022-521-278

Edgeboard Connectors Overview

The EDAC Inc. 305-022-521-278 is a standard card edge connector featuring 22 positions arranged in a dual row configuration with a 3.96 mm (0.156 inch) pitch. Designed for panel mount installation, it utilizes solder pin termination and gold-plated copper alloy contacts to ensure reliable signal transmission. The unit supports a current rating of 5 A and operates within a temperature range of -40°C to +105°C. It accommodates PCB thicknesses between 1.37 mm and 1.78 mm, housed in a green thermoplastic polyester insulator.

Edgeboard Connectors Feature Summary

• Features semi-bellows contact type providing moderate mechanical cycling capability suitable for non-hot-swap applications
• Incorporates flange characteristics including embedded mounting, top opening, and threaded inserts for secure panel attachment
• Utilizes gold-plated copper alloy contacts on a thermoplastic polyester base for durable electrical performance

Edgeboard Connectors Applications

• Industrial control systems requiring robust panel-mounted interconnects
• Test and measurement equipment interfaces
• General-purpose electronic modules needing standardized card edge connections

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against official EDAC documentation to confirm exact flange and termination specifications. Ensure compatibility with target PCB thickness limits and thermal operating ranges before integration. Confirm RoHS compliance status through manufacturer datasheets as regulatory requirements may vary by region and production batch.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge connector with threaded flange mounting is required. The 3.96 mm pitch suits applications needing wider spacing than standard 2.54 mm connectors. Verify that the semi-bellows contact design meets the mechanical cycle requirements of the intended application environment.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, a line of standard card edge connectors designed for high-reliability industrial environments. The series offers various position counts and mounting options, utilizing consistent 3.96 mm pitch geometry across models to simplify system design and inventory management for engineers.

Edgeboard Connectors Replacement Considerations

Cross-reference with other EDAC 305 series variants sharing identical pitch and mounting dimensions. Verify that substitute parts maintain compatible flange thread sizes and PCB thickness tolerances to ensure mechanical fit without modification.