305-020-556-578

Edgeboard Connectors Overview

The EDAC Inc. 305-020-556-578 is a standard card edge connector from the 305 series, designed for dual female connections with 20 positions. It features a 3.96 mm (0.156 inch) pitch and accommodates board thicknesses between 1.37 mm and 1.78 mm. The connector utilizes gold-plated copper alloy contacts with a 10.0 µin thickness, ensuring reliable signal transmission. Rated for 5 A current, it operates within a temperature range of -40°C to +105°C. The housing is made of green thermoplastic polyester, providing insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Dual-row female configuration for secure card edge insertion
• Gold-plated half-bead contact design for enhanced conductivity
• Panel mount style with flange featuring top opening and no threads
• Vertical installation orientation for compact circuit board integration

Edgeboard Connectors Applications

• Industrial control system interface modules
• Telecommunications equipment backplanes
• Test and measurement instrument cards
• Embedded computing hardware expansion slots

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm mechanical dimensions and plating specifications. Ensure compatibility with the target PCB panel mounting requirements and card thickness tolerances. Confirm RoHS compliance status through the latest product documentation before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a dual-row female connector with a 3.96 mm pitch is required for vertical panel mounting. Consider the 5 A current rating and operating temperature range for environmental suitability. Verify that the target card thickness falls within the specified 1.37 mm to 1.78 mm window to ensure proper mechanical engagement.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, which offers various mounting options and position counts. The series is characterized by its robust construction and standardized pitch, making it suitable for high-reliability applications requiring stable electrical connections in demanding environments.

Edgeboard Connectors Replacement Considerations

Consult the EDAC 305 Series Ordering Guide for direct substitutes with different position counts or mounting styles. Cross-reference mechanical drawings to ensure flange dimensions and pin configurations match the existing design constraints.