305-038-555-203

Edgeboard Connectors Overview

The EDAC Inc. 305-038-555-203 is a standard card edge connector from the 305 series, designed for dual-edge board applications. It features 38 positions with a 3.96 mm (0.156 inch) pitch and accepts PCB thicknesses between 1.37 mm and 1.78 mm. The connector utilizes gold-plated copper alloy contacts with a 0.25 µm thickness rating. Rated for 5 A current, it operates within a temperature range of -40°C to +105°C. The housing is constructed from green thermoplastic polyester, providing an insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Dual-edge female contact configuration for secure board insertion
• Gold-plated semi-beryllium copper contacts for reliable conductivity
• Thermoplastic polyester housing with high insulation resistance
• Vertical panel mounting style with solder pin termination

Edgeboard Connectors Applications

• Industrial control system interconnects
• Telecommunications equipment backplanes
• Test and measurement instrument modules
• Computing hardware peripheral interfaces

Edgeboard Connectors Procurement Notes

Verify the specific suffix '555' against official EDAC documentation to confirm the exact plating thickness and material specifications, as variations exist within the 305 series. Ensure compatibility with the target PCB thickness range of 1.37 mm to 1.78 mm. Confirm that the vertical panel mount orientation aligns with the mechanical design requirements before finalizing the procurement order.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge card edge connector with a 3.96 mm pitch is required for panel-mounted applications. The 38-position count suits moderate-density signal routing needs. Consider the 5 A current rating and -40°C to +105°C operating range for environmental suitability. Verify that the thermoplastic polyester housing meets flame retardancy standards applicable to the end product.

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 to accommodate different board densities. The 305-038-555-203 specifically addresses applications requiring robust dual-edge connectivity with standardized dimensions and reliable electrical performance over a wide temperature range.

Edgeboard Connectors Replacement Considerations

Cross-reference with EDAC part numbers sharing the same 3.96 mm pitch and 38-position count, such as the 305-038-520-203 or 305-038-521-202, ensuring identical mounting style and contact configuration. Verify that any substitute maintains the same PCB thickness tolerance and current rating.