305-054-521-201

Edgeboard Connectors Overview

The EDAC Inc. 305-054-521-201 is a standard card edge connector from the 305 Series, designed for reliable signal transmission in electronic assemblies. This dual-row header features 54 positions with a 3.96 mm (0.156 inch) pitch, accommodating PCBs with a thickness of 1.57 mm. The contacts are constructed from copper alloy and gold-plated to ensure low resistance and corrosion resistance, supporting a continuous current rating of 5 A. It utilizes a solder pin termination method and is housed in green thermoplastic polyester. The component operates within a temperature range of -40°C to +105°C and provides an insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Dual-edge female contact configuration for secure board insertion
• Gold-plated copper alloy contacts for enhanced conductivity
• Thermoplastic polyester housing for thermal stability
• Accepts between-contact and in-contact polarizing keys

Edgeboard Connectors Applications

• Microcontroller interface connections
• Embedded system backplanes
• Industrial control panel interconnects
• Telecommunications equipment headers

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact plating thickness, material grade, and packaging specifications. Ensure compatibility with existing polarizing key requirements and verify that the target PCB thickness strictly matches the 1.57 mm design parameter to guarantee proper mechanical retention and electrical contact integrity during assembly.

Edgeboard Connectors Selection Notes

Select this component when a high-density dual-row connection is required for vertical panel mounting applications. The 3.96 mm pitch allows for robust spacing compared to finer pitches, while the 5 A current rating supports moderate power distribution. Consider the green thermoplastic housing for visual identification and ensure the operating environment remains within the specified -40°C to +105°C range for optimal performance.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, a line of standard card edge connectors known for their versatility in industrial and commercial electronics. The series offers various position counts and termination styles, allowing engineers to scale designs without changing the fundamental form factor or mating interface standards established by the family.

Edgeboard Connectors Replacement Considerations

Direct substitutes must match the 54-position count, 3.96 mm pitch, dual-row configuration, and gold-plated termination style. Verify that alternative manufacturers offer compatible polarizing key acceptance and identical PCB thickness tolerance of 1.57 mm to maintain mechanical fit.