305-078-520-201

Edgeboard Connectors Overview

The EDAC Inc. 305-078-520-201 is a standard card edge connector from the 305 series, designed for dual-edge card applications. It features 78 positions with a 3.96 mm (0.156 inch) pitch and supports a board thickness range of 1.37 mm to 1.78 mm. The connector utilizes gold-plated copper alloy contacts and a green thermoplastic polyester housing. Rated for 5 A current, it operates within a temperature range of -40°C to +105°C and offers an insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Dual-edge female contact configuration for secure card insertion
• Gold-plated copper alloy contacts ensure reliable signal transmission
• Thermoplastic polyester housing provides thermal stability up to 105°C

Edgeboard Connectors Applications

• Industrial control system interface modules
• Telecommunications equipment backplanes
• Computing hardware expansion slots

Edgeboard Connectors Procurement Notes

Verify the specific suffix code against the manufacturer datasheet to confirm exact plating thickness and material specifications. Ensure compatibility with the target PCB panel mounting style and verify that the required card thickness falls within the specified 1.37 mm to 1.78 mm operational range before finalizing component selection.

Edgeboard Connectors Selection Notes

Select this component when a high-density connection is required for dual-edge cards. The 3.96 mm pitch accommodates larger traces compared to finer pitches. Confirm that the application environment stays within the -40°C to +105°C operating limits and that the mechanical fit matches the panel or PCB mounting requirements defined in the dimensional drawings.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and mounting styles. The 305-078-520-201 specifically addresses the need for 78-position connectivity in dual-edge configurations, distinguishing it from single-row or header variants within the same product family.

Edgeboard Connectors Replacement Considerations

Cross-reference with EDAC part numbers sharing the 305 series prefix and identical 78-position count. Verify that alternative candidates match the 3.96 mm pitch and dual-edge form factor to maintain mechanical and electrical interchangeability without redesigning the host assembly.

Edgeboard Connectors FAQ

What is the supported card thickness for this connector?

The connector supports a card thickness range of 1.37 mm to 1.78 mm (0.054 inches to 0.070 inches).

Is this connector suitable for high-temperature environments?

Yes, the thermoplastic polyester housing allows operation at temperatures up to +105°C.