305-040-556-258

Edgeboard Connectors Overview

The EDAC Inc. 305-040-556-258 is a dual-edge female card edge connector designed for vertical panel mounting. It features 40 positions with a 0.156-inch (3.96mm) contact spacing and accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57mm). The connector utilizes gold-plated copper alloy contacts with a half-beryllium-copper termination type, ensuring reliable signal transmission. Rated for 5A current, it operates within a temperature range of -40°C to +105°C. The housing is constructed from thermoplastic polyester, providing durability and insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Dual-edge female configuration for secure board insertion
• Gold-plated contacts ensure corrosion resistance and low contact resistance
• Vertical panel mount design facilitates structured assembly
• Thermoplastic polyester housing provides high insulation resistance

Edgeboard Connectors Applications

• Industrial control system backplanes
• Telecommunications equipment interconnects
• Test and measurement instrument modules
• Embedded computing hardware interfaces

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official 305 Series Ordering Guide to confirm plating thickness and material specifications. Ensure compatibility with the target PCB thickness of 0.062 inches. Confirm RoHS3 compliance requirements if applicable to the end product. Cross-reference the DigiKey or Mouser part numbers for accurate sourcing channels.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge interface with 0.156-inch spacing is required for panel-mounted applications. Consider the 5A current rating and -40°C to +105°C operating range for environmental suitability. Evaluate the vertical mounting style against available chassis space. Compare against similar series parts like the 305-050-556-258 for position count variations.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series of standard card edge connectors. The series offers various position counts and mounting styles, including panel and board edge options. The 305 series is characterized by its robust construction and standardized spacing, making it suitable for general-purpose industrial and commercial electronic interconnections requiring reliable mechanical and electrical performance.

Edgeboard Connectors Replacement Considerations

Direct substitutes include other EDAC 305 series variants with identical 40-position dual-edge configurations. Verify that alternative part numbers maintain the same 0.156-inch pitch and 0.062-inch board thickness acceptance. Check for equivalent current ratings and temperature specifications before substitution.