305-078-556-558

Edgeboard Connectors Overview

The EDAC Inc. model 305-078-556-558 is a standard card edge connector from the 305 series, designed for dual-edge female applications. It features 78 positions with a pitch of 3.96 mm (0.156 inches) and accommodates a board thickness of 1.57 mm. The connector utilizes gold-plated copper alloy contacts and is housed in green thermoplastic insulation. Rated for 5 A current, it supports panel mounting at a vertical angle with solder pin termination. Operating temperatures range from -40°C to +105°C, with an insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Dual-edge female configuration for secure card insertion
• Gold-plated contacts ensure reliable signal transmission
• Vertical panel mount design facilitates structured assembly

Edgeboard Connectors Applications

• Industrial control system backplanes
• Telecommunications equipment interconnects
• Test and measurement instrument modules

Edgeboard Connectors Procurement Notes

Verify the specific suffix code against official EDAC documentation to confirm exact plating thickness and insulator color specifications. Confirm that the required contact termination method aligns with available solder pin options. Ensure compatibility with the target PCB edge guide dimensions before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a high-density 78-position interface is required within the 305 series family. The 3.96 mm pitch allows for robust spacing compared to finer pitches. Verify that the 5 A rating meets the circuit load requirements and that the vertical orientation fits the enclosure constraints.

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 termination styles. This specific model provides a mid-range position count suitable for complex data or power distribution tasks in industrial environments.

Edgeboard Connectors Replacement Considerations

Consult EDAC directly for alternative configurations such as single-row variants or different tail options. Cross-reference with other 305-series models sharing the same 3.96 mm pitch if position count adjustments are permissible.