305-078-500-508

Edgeboard Connectors Overview

The EDAC Inc. 305-078-500-508 is a standard card edge connector from the 305 Series, designed for dual-edge board insertion. It features 78 positions with a 3.96 mm (0.156 inch) contact spacing and supports a maximum PCB thickness of 1.57 mm. The connector utilizes gold-plated copper alloy contacts to ensure reliable signal transmission and is rated for a continuous current of 5 A. Constructed with a green thermoplastic insulator, it offers an insulation resistance of 5 GOhms. Designed for panel mounting in a vertical orientation, this component operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-row configuration providing 78 connection points for high-density applications
• Gold-plated phosphor bronze contacts ensuring corrosion resistance and stable conductivity
• Thermoplastic housing material offering structural integrity and electrical insulation
• Vertical panel mount style facilitating secure mechanical installation

Edgeboard Connectors Applications

• Industrial control system backplanes requiring robust interconnects
• Telecommunications equipment utilizing standard card edge interfaces
• Test and measurement instrumentation boards
• Automotive electronic modules needing reliable signal pathways

Edgeboard Connectors Procurement Notes

Verify that the specific part number matches the required 78-position count and 3.96 mm pitch before procurement. Confirm that the operating environment remains within the specified -40°C to +105°C temperature limits. Ensure the target printed circuit board thickness does not exceed 1.57 mm to guarantee proper contact engagement. Check for compliance with relevant RoHS directives if environmental regulations apply to the assembly process.

Edgeboard Connectors Selection Notes

Select this model when a dual-row interface with 78 positions is necessary for vertical panel mounting. The 3.96 mm spacing accommodates thicker PCBs up to 1.57 mm, suitable for heavy-duty industrial designs. The 5 A current rating supports moderate power distribution requirements alongside signal lines. Consider the gold plating for environments where long-term oxidation resistance is critical for maintaining low contact resistance over time.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 Series, which specializes in standard card edge connectors. The series provides various position counts and configurations to support diverse electronic assembly needs. The 305-078-500-508 variant specifically addresses applications requiring a higher density of connections within a dual-row format, balancing mechanical stability with electrical performance standards.

Edgeboard Connectors Replacement Considerations

Direct substitutes include other EDAC 305 Series connectors with matching 78 positions and 3.96 mm pitch, such as 305-078-500-258 or 305-078-500-568, provided the end termination type aligns with the design requirements.