305-078-556-208

Edgeboard Connectors Overview

The EDAC Inc. 305-078-556-208 is a standard card edge connector from the 305 series, designed for dual female contact configurations with 78 positions. It features a 3.96 mm (0.156 inch) pitch and utilizes gold-plated copper alloy contacts to ensure reliable signal transmission. The unit supports panel mounting with vertical orientation and includes #4-40 unified threaded inserts for secure installation. Rated for 5 A current, it accommodates board thicknesses between 1.37 mm and 1.78 mm. Operating within a temperature range of -40°C to +105°C, the connector employs a thermoplastic insulator and solder pin termination.

Edgeboard Connectors Feature Summary

• Dual row configuration providing 78 positions for high-density interconnect applications
• Gold-plated copper alloy contacts ensuring corrosion resistance and stable electrical performance
• Panel mount design with vertical orientation and integrated #4-40 threaded inserts for mechanical stability

Edgeboard Connectors Applications

• Industrial control systems requiring robust panel-mounted interfaces
• Telecommunications equipment utilizing standard card edge form factors
• Test and measurement instrumentation needing high-reliability connections

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact contact plating thickness, insulation color, and termination style. Ensure compatibility with the target PCB edge thickness specifications before procurement. Confirm availability status through authorized distributors as supply conditions may vary. Cross-reference the RoHS compliance documentation to meet environmental regulatory requirements for your specific project constraints.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge connector with a 3.96 mm pitch is required for panel-mount applications. The 78-position count suits designs needing extensive I/O or data bus connections in a single interface. Verify that the housing material and operating temperature range align with the environmental conditions of the end-use device. Consider the inclusion of threaded inserts if rigid mechanical fixation without additional hardware is preferred over snap-fit methods.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors, which are widely used in modular electronic systems. The series offers various position counts and mounting options to accommodate different board sizes and structural needs. As a header type connector, it interfaces directly with mating cards, providing a secure electrical path. The consistent 3.96 mm pitch across the series allows for standardized design practices within compatible product families.

Edgeboard Connectors Replacement Considerations

Compatible substitutes include other EDAC 305 series variants with matching 78 positions and 3.96 mm pitch, such as 305-078-520-208, provided the termination style and mounting features align with the assembly requirements. Verify that any alternative part maintains the same current rating and temperature specifications.