305-038-521-503

Edgeboard Connectors Overview

The EDAC Inc. 305-038-521-503 is a standard card edge connector from the 305 Series, designed for panel mount applications with a vertical orientation. It features 38 positions arranged in a dual-row configuration with a 3.96 mm (0.156 inch) contact spacing. The connector utilizes gold-plated copper alloy contacts and thermoplastic polyester insulation, supporting a continuous current rating of 5 A. It accommodates board thicknesses between 1.37 mm and 1.78 mm and operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure positioning
• Provides high dielectric strength with a 1800VACrms voltage rating
• Features solder pin termination for reliable PCB attachment

Edgeboard Connectors Applications

• Industrial control systems requiring polarized connections
• High-voltage signal routing in electronic assemblies
• Panel-mounted interface modules with dual-edge cards

Edgeboard Connectors Procurement Notes

Verify that the specific suffix '503' corresponds to the required contact tail dimensions and plating specifications. Confirm compatibility with the target PCB thickness range of 1.37 mm to 1.78 mm. Ensure the design supports the acceptance of polarizing keys if isolation is required. Check regional availability as distribution may be limited.

Edgeboard Connectors Selection Notes

Select this component when a 38-position dual-row connector with 3.96 mm pitch is required. It is suitable for applications needing 5 A current capacity and 1800VACrms insulation resistance. Choose this model over single-row variants when dual-sided card edge access is necessary. Verify that the thermoplastic polyester housing meets environmental requirements.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series of card edge connectors, which are characterized by their 3.96 mm contact spacing and robust construction. The series includes various position counts and mounting styles, all sharing common electrical ratings and material properties. This specific model represents a mid-range position count within the series.

Edgeboard Connectors Replacement Considerations

Direct substitutes include other EDAC 305 Series parts with identical 38-position dual-row configurations and matching contact spacing. Cross-referencing datasheets for equivalent current ratings and voltage withstand capabilities is essential before substitution.