305-050-555-203

Edgeboard Connectors Overview

The EDAC Inc. 305-050-555-203 is a standard card edge connector from the 305 series, designed for reliable signal transmission in electronic assemblies. It features a dual-row configuration with 50 positions and a contact spacing of 3.96 mm (0.156 inches). The connector supports PCBs with a nominal thickness of 1.57 mm (0.062 inches) and utilizes gold-plated copper alloy contacts to ensure low resistance and corrosion resistance. Rated for 5 A continuous current, it operates within a temperature range of -40°C to +105°C. The housing is constructed from green thermoplastic polyester, providing mechanical stability and electrical insulation.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Features a low-profile insulator body for compact panel or PCB mounting
• Utilizes semi-sleeve contact design for robust retention on dual-edge cards

Edgeboard Connectors Applications

• Industrial control system backplanes
• Telecommunications equipment interconnects
• Test and measurement instrument modules

Edgeboard Connectors Procurement Notes

Verify that the specific ordering suffix matches the required termination style and mounting orientation. Confirm compliance with RoHS3 and REACH regulations as stated in the manufacturer documentation. Ensure the selected variant aligns with the intended PCB thickness and polarizing key requirements for the assembly.

Edgeboard Connectors Selection Notes

Select this component when a dual-row interface with 50 positions is required for high-density applications. Consider the 3.96 mm pitch and 1.57 mm board thickness compatibility before integration. Evaluate the need for polarizing keys if precise card insertion direction is critical for the system design.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors, which are widely used in modular electronic systems. The series offers various position counts and mounting styles, providing flexibility for different enclosure and circuit board designs while maintaining consistent electrical performance standards.

Edgeboard Connectors Replacement Considerations

Direct substitutes include other EDAC 305 series variants with identical pin counts and pitch, such as 305-050-556-201, provided the mounting style and termination type match the original design requirements.