305-020-521-258

Edgeboard Connectors Overview

The EDAC Inc. 305-020-521-258 is a standard card edge connector featuring 20 positions in a dual female configuration. It utilizes a 0.156-inch (3.96 mm) pitch and accepts board thicknesses between 0.054 and 0.070 inches. The component employs gold-plated copper alloy contacts with a half-beam termination style for reliable signal transmission. Designed for panel mounting, it operates within a temperature range of -40°C to +105°C and supports a continuous current rating of 5 A.

Edgeboard Connectors Feature Summary

• Dual-edge female contact design accommodates non-specified card edge boards
• Gold over nickel plating ensures corrosion resistance and stable conductivity
• Half-beam termination style provides secure mechanical retention
• Thermoplastic polyester housing offers high insulation resistance

Edgeboard Connectors Applications

• Industrial control system interconnects
• Telecommunications equipment backplanes
• Test and measurement instrumentation modules
• Embedded computing hardware interfaces

Edgeboard Connectors Procurement Notes

Verify the specific suffix code against manufacturer documentation to confirm exact pin count, plating thickness, and orientation specifications. Ensure compatibility with mating card edge board dimensions and polarizing key requirements before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a dual-row female interface is required for vertical or straight panel mounting applications. Confirm that the target PCB thickness falls within the specified operational range and that the 5A current rating meets circuit load requirements without derating.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series is characterized by robust thermoplastic polyester housings and copper alloy contacts designed for high-reliability industrial environments. The 305 series supports various position counts and mounting configurations.

Edgeboard Connectors Replacement Considerations

Direct substitutes include EDAC 305-020-520-258 and 305-020-500-203. Verify that alternative part numbers match the required 20-position count, 3.96 mm pitch, and dual female contact configuration before implementation.