305-084-521-208

Edgeboard Connectors Overview

The EDAC Inc. 305-084-521-208 is a standard card edge connector from the 305 series, designed for high-density interconnect applications. It features an 84-position configuration with dual-edge contact geometry and a 0.156-inch (3.96mm) pitch. The connector utilizes gold-plated copper alloy contacts to ensure reliable signal transmission and corrosion resistance. It supports a continuous current rating of 5A and accommodates printed circuit boards with a nominal thickness of 0.062 inches (1.57mm). The unit employs a panel mount installation style with vertical orientation and solder lug termination for secure PCB attachment.

Edgeboard Connectors Feature Summary

• Dual-edge female contact design provides robust connection for double-sided card edge circuits.
• Gold-plated copper alloy contacts ensure low contact resistance and long-term reliability.
• Panel mount vertical installation allows for secure structural integration in chassis systems.
• Accepts polarizing keys for precise alignment and insertion protection during assembly.

Edgeboard Connectors Applications

• Industrial control system backplanes requiring high pin counts
• Telecommunications equipment interface modules
• Test and measurement instrument internal connections

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact contact plating thickness, insulator material grade, and flange specifications. Ensure that the target application board thickness falls within the specified tolerance range of 0.062 inches. Confirm RoHS compliance status and environmental ratings prior to final procurement approval to match project requirements.

Edgeboard Connectors Selection Notes

Select this component when a high-pin-count dual-edge connector is required for vertical panel mounting. The 3.96mm pitch offers spacing suitable for moderate density layouts. Consider the 5A current rating and 1800VACrms dielectric strength for power and signal integrity needs. Verify compatibility with existing polarizing key systems if used in constrained enclosure environments.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors, which are engineered for general-purpose electronic interconnects. The series is characterized by its versatility in accepting various board thicknesses and its compatibility with polarizing keys. The 305 series serves as a foundational solution for connecting edgeboards to motherboards or backplanes in modular electronic architectures.

Edgeboard Connectors Replacement Considerations

Direct substitutes include other EDAC 305 series variants with matching 84 positions and 3.96mm pitch, such as 305-084-521-202 or 305-084-521-278, provided the termination type and insulation material align with the design. Cross-brand replacements require careful verification of mechanical dimensions, electrical ratings, and contact geometry to ensure functional equivalence.