305-078-520-208

Edgeboard Connectors Overview

The EDAC Inc. 305-078-520-208 is a standard card edge connector from the 305 series, designed for dual-edge board connections. It features 78 positions arranged in two rows with a contact pitch of 3.96 mm (0.156 inches) and a row spacing of 3.56 mm. The connector accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inches). Constructed with copper alloy contacts gold-plated for conductivity, it utilizes a thermoplastic insulator body. Rated for 5 A current at +105 °C maximum operating temperature, it employs solder termination and panel mount installation.

Edgeboard Connectors Feature Summary

• Dual-row configuration supporting dual-edge card insertion
• Gold-plated copper alloy contacts ensuring reliable signal transmission
• Thermoplastic insulator body providing structural stability
• Panel mount design with solder lug termination

Edgeboard Connectors Applications

• Industrial control system interconnects
• Embedded hardware module connections
• Telecommunications equipment backplanes

Edgeboard Connectors Procurement Notes

Verify the specific pin count and termination style against the official datasheet to ensure compatibility with the target PCB layout. Confirm that the operating environment remains within the specified -40 °C to +105 °C range. Check RoHS compliance documentation if environmental regulations apply to the final assembly. Ensure the mounting hole pattern matches the panel requirements.

Edgeboard Connectors Selection Notes

Select this component when a high-density connection is required for 1.57 mm thick boards. The 3.96 mm pitch allows for fewer pins compared to finer pitches while maintaining robust mechanical engagement. Consider the vertical orientation and panel mount style for fixed installations where space constraints favor a low-profile header design over cable assemblies.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, which specializes in standard card edge connectors. The series offers various position counts and mounting configurations to support diverse electronic applications. The 305-078-520-208 specifically addresses needs for moderate-to-high density connections using a standardized 3.96 mm grid.

Edgeboard Connectors Replacement Considerations

Compatible substitutes include other EDAC 305 series parts with matching 78 positions and 3.96 mm pitch, such as 305-078-520-207 or 305-078-520-268, provided the termination type and insulation color meet the design requirements.