305-040-520-278

Edgeboard Connectors Overview

The EDAC Inc. 305-040-520-278 is a standard card edge connector header designed for panel mounting applications. It features a dual-row configuration with 40 positions and a pitch of 3.96 mm (0.156 inches). The unit accommodates board thicknesses of 1.57 mm and utilizes gold-plated copper alloy contacts with solder pin termination. Rated for 5 A continuous current, it operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-row female contact design for reliable signal transmission
• Gold-plated contacts ensure corrosion resistance and low contact resistance
• Panel mount style provides secure mechanical installation
• Thermoplastic housing offers thermal stability and insulation

Edgeboard Connectors Applications

• Industrial control system interconnects
• Telecommunications equipment backplanes
• Automotive electronic module connections
• Test and measurement instrument interfaces

Edgeboard Connectors Procurement Notes

Verify the specific suffix against official EDAC documentation to confirm exact plating thickness and material specifications. Ensure compatibility with mating card edge thickness tolerances before integration. Confirm RoHS compliance status through the manufacturer's latest certification records rather than distributor summaries.

Edgeboard Connectors Selection Notes

Select this component when a 40-position dual-row interface is required for panel-mounted systems. The 3.96 mm pitch suits standard PCB layouts requiring high-density connections. Verify that the 5 A current rating meets the circuit load requirements and that the operating temperature range aligns with the environmental conditions of the target application.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series is characterized by robust thermoplastic housings and versatile mounting options. Similar models in the series vary primarily by position count and specific termination styles while maintaining consistent electrical performance standards.

Edgeboard Connectors Replacement Considerations

Cross-reference with EDAC part numbers sharing the same 305 series prefix and identical 40-position dual-row configuration. Verify that alternative candidates match the 3.96 mm pitch and panel mount orientation to ensure mechanical interchangeability without redesign.