305-056-521-278

Edgeboard Connectors Overview

The EDAC Inc. 305-056-521-278 is a standard card edge connector from the 305 series, designed for dual-edge board applications. It features 56 positions with a contact spacing of 0.156 inches (3.96 mm) and a row spacing of 0.140 inches (3.56 mm). The connector accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57 mm). Constructed with copper alloy contacts featuring gold plating, it supports a current rating of 5 A. The housing is made of green thermoplastic material, providing an insulation resistance of 5 GOhms. It operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-edge female connector design for secure board insertion
• Gold-plated copper alloy contacts ensure reliable signal transmission
• Low-profile insulator body accommodates space-constrained panel installations

Edgeboard Connectors Applications

• Panel-mounted electronic assemblies requiring vertical interconnection
• Industrial control systems utilizing dual-edge PCBs
• Test and measurement equipment interfaces

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix to confirm contact configuration and termination style. Ensure compatibility with the target PCB thickness of 0.062 inches (1.57 mm). Confirm that the operating environment remains within the specified -40°C to +105°C range. Check for RoHS compliance documentation if required by project specifications. Validate panel mounting requirements against the connector's physical dimensions.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge connection is required for a 56-position interface. The 3.96 mm pitch suits applications needing robust mechanical retention. Consider the 5 A current rating for power distribution needs. The vertical installation style is suitable for panel-to-board connections. Verify that the green thermoplastic housing meets environmental durability requirements.

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. The 305 series is characterized by its low-profile design and high-density capabilities. It is widely used in industrial and commercial electronics where reliable card edge interfacing is essential. The model number indicates specific pin count and contact arrangement details.

Edgeboard Connectors Replacement Considerations

Cross-reference with other EDAC 305 series variants for different position counts. Verify dimensional compatibility with existing panel cutouts. Ensure electrical ratings match system requirements before substitution.