305-078-521-558

Edgeboard Connectors Overview

The EDAC Inc. 305-078-521-558 is a standard card edge connector header featuring 78 positions in a dual-row configuration. It utilizes a 3.96 mm (0.156 inch) contact spacing and a 3.56 mm (0.140 inch) row spacing. Designed for vertical panel mounting, the unit accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). The contacts are constructed from copper alloy with gold plating to ensure reliable signal transmission. The component supports a current rating of 5 A and operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-edge female connector design accommodates double-sided card edge PCBs
• Low-profile insulator body reduces overall assembly height requirements
• Gold-plated copper alloy contacts provide durable electrical interfaces

Edgeboard Connectors Applications

• Industrial control system backplanes
• Telecommunications equipment interconnects
• Medical device modular assemblies

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against official EDAC documentation to confirm exact pin count and termination style. Confirm that the target PCB thickness matches the 1.57 mm specification. Ensure panel mounting hardware compatibility with the vertical orientation. Check RoHS compliance status through the manufacturer datasheet before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a high-density 78-position interface is required for vertical panel integration. The 3.96 mm pitch suits applications needing robust mechanical stability. Verify that the 5 A current rating aligns with the system's power distribution requirements. Ensure the dual-row layout fits within the available board space constraints.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and termination options for diverse electronic assembly needs. EDAC specializes in high-reliability interconnect solutions for industrial and commercial sectors. The 305 series is characterized by its consistent dimensional standards and durable material composition.

Edgeboard Connectors Replacement Considerations

Consult official EDAC cross-reference lists for verified substitute part numbers. Generic equivalents may not match the precise 3.96 mm spacing or 1.57 mm board thickness tolerance. Verify that any replacement maintains the same dual-row female configuration and vertical mounting angle.