305-020-556-558

Edgeboard Connectors Overview

The EDAC Inc. 305-020-556-558 is a standard card edge connector from the 305 series, designed for dual-edge board applications. It features a 20-position configuration with a 3.96 mm (0.156 inch) pitch across two rows. The connector utilizes gold-plated copper alloy contacts and accepts PCBs with thicknesses ranging from 1.37 mm to 1.78 mm (0.054 to 0.070 inches). It supports a continuous current rating of 5 A and withstands 1800 VACrms dielectric voltage. The housing is green thermoplastic polyester, rated for operation between -40°C and +105°C.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Dual-row female contact configuration for high-density interconnects
• Gold-plated half-beryllium-copper contacts ensure reliable signal transmission

Edgeboard Connectors Applications

• Industrial control systems requiring robust panel-mounted connections
• Telecommunications equipment utilizing dual-edge card architectures
• Test and measurement instrumentation needing standardized card interfaces

Edgeboard Connectors Procurement Notes

Verify the specific suffix code against the manufacturer's official ordering guide to confirm exact pin count, plating thickness, and mounting style variations. Ensure compatibility with existing polarizing key requirements and PCB thickness tolerances before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge card interface with a 3.96 mm pitch is required. Confirm that the application environment stays within the specified temperature range and that the PCB thickness falls within the accepted mechanical limits for proper contact engagement.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, which provides various mounting options including panel mount configurations. The series is characterized by its standardized dimensions and reliable performance in demanding electronic environments, offering consistent electrical characteristics across different position counts.

Edgeboard Connectors Replacement Considerations

Consult the official EDAC 305 Series Ordering Guide for direct substitute part numbers with identical mechanical and electrical specifications. Verify cross-compatibility regarding polarizing key acceptance and PCB thickness constraints before implementing any alternative components.