305-042-556-502

Edgeboard Connectors Overview

The EDAC Inc. 305-042-556-502 is a dual-edge female card edge connector from the 305 series, designed for board-to-board or backplane applications. It features 42 positions with a 0.156-inch (3.96 mm) pitch across two rows. The connector utilizes gold-plated copper alloy contacts with a thickness of 10.0 µin (0.25 µm) and half-beam contact types. It supports PCB thicknesses between 0.054 and 0.070 inches (1.37–1.78 mm). The housing is green thermoplastic polyester, rated for operation from -40°C to +105°C. Mounting is via solder termination in a panel-mount configuration.

Edgeboard Connectors Feature Summary

• Dual-edge female interface for non-specified card insertion
• Gold-plated half-beam contacts ensure reliable signal transmission
• Thermoplastic polyester insulation provides thermal stability
• Panel-mount design with flanged features for secure installation

Edgeboard Connectors Applications

• Industrial control systems requiring robust interconnects
• Communication equipment backplanes
• Test and measurement instrumentation boards
• Automotive electronics modules

Edgeboard Connectors Procurement Notes

Verify the complete part number including suffix codes to ensure correct contact plating thickness and housing color specifications. Confirm that the target PCB thickness falls within the 0.054 to 0.070 inch range for proper mechanical engagement. Check RoHS compliance status if required by project regulations. Ensure soldering parameters align with the specified termination type to maintain joint integrity during assembly.

Edgeboard Connectors Selection Notes

Select this model when a dual-sided card edge connection with a 3.96 mm pitch is required. The 42-position count suits moderate-density applications. Consider the panel-mount style for rigid structural integration. Verify that the operating temperature range meets environmental demands. Compare against single-row alternatives if space constraints differ. Ensure compatibility with existing card edge profiles.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and mounting styles. The 305-042 variant specifically addresses mid-range connectivity needs. It shares design principles with other 305 models but differs in pin count and specific termination details. The series is known for durability in industrial environments.

Edgeboard Connectors Replacement Considerations

Cross-reference with EDAC 305-050-556-502 for higher density requirements. The 305-038-556-502 serves as a lower position alternative. Verify mechanical dimensions before substitution. Electrical characteristics should match closely. Consult official datasheets for exact footprint compatibility.