305-078-521-258

Edgeboard Connectors Overview

The EDAC Inc. 305-078-521-258 is a standard card edge connector from the 305 series, designed for panel mount applications with a vertical orientation. It features 78 positions arranged in a dual configuration with a 3.96 mm (0.156 inch) pitch. The connector utilizes gold-plated copper alloy contacts and accepts board thicknesses between 1.37 mm and 1.78 mm. Rated for 5 A continuous current and 1800 VACrms insulation voltage, it operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-edge female contact design for non-specified card types
• Gold-plated copper alloy contacts ensure reliable signal transmission
• Panel mount installation style with vertical orientation
• Accepts between-contact and in-contact polarizing keys

Edgeboard Connectors Applications

• High-density electronic module interconnection
• Industrial control system backplanes
• Telecommunications equipment interfaces
• Automotive electronics assemblies

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against official EDAC documentation to confirm exact pin count, plating thickness, and flange specifications. Ensure compatibility with target PCB thickness ranges before procurement. Confirm RoHS3 compliance status through manufacturer datasheets rather than distributor summaries.

Edgeboard Connectors Selection Notes

Select this component when high position density is required alongside robust mechanical stability. The 3.96 mm pitch accommodates standard board layouts while the dual-edge design maximizes I/O capacity. Verify that the application environment remains within the specified -40°C to +105°C operational limits.

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 configurations. The 305-078 variant specifically provides 78 positions, balancing high connectivity with manageable form factor dimensions for panel integration.

Edgeboard Connectors Replacement Considerations

Cross-reference with other 305-series parts such as 305-078-521-208 or 305-078-520-508 for alternative flange or termination options. Verify dimensional compatibility and electrical ratings match before substitution.