305-070-520-578

Edgeboard Connectors Overview

The EDAC Inc. 305-070-520-578 is a standard card edge connector from the 305 series, designed for dual-edge board applications. It features 70 positions with a 3.96 mm (0.156 inch) pitch and supports PCB thicknesses of 1.37 mm to 1.78 mm. The connector utilizes gold-plated copper alloy contacts for reliable signal transmission and offers a 5 A current rating. Constructed with thermoplastic polyester insulation, it 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 connector design compatible with non-specified double-sided circuit boards
• Gold-plated copper alloy contacts ensure stable electrical performance and corrosion resistance
• Thermoplastic polyester housing provides high thermal stability and mechanical durability
• Accepts between-contact and in-contact polarizing keys for secure board alignment

Edgeboard Connectors Applications

• Industrial control systems requiring robust panel-mounted interconnects
• Telecommunications equipment utilizing standardized card edge interfaces
• Automotive electronics demanding high-temperature operational reliability
• Test and measurement instruments needing precise signal routing

Edgeboard Connectors Procurement Notes

Verify the complete part number including suffix codes to ensure correct contact plating and housing color specifications. Confirm RoHS compliance status and manufacturing origin prior to ordering. Check for specific packaging quantities as factory pack sizes may vary. Ensure compatibility with existing polarizing key requirements if used in constrained spaces.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge connector with a 3.96 mm pitch is required for vertical or panel mounting. Consider the 5 A current rating and 105°C maximum operating temperature for high-power or high-thermal environments. Verify that the target PCB thickness falls within the 1.37 mm to 1.78 mm acceptance range for optimal contact engagement.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors, which are widely used in industrial and commercial electronics. The series offers various position counts and mounting styles, providing a versatile solution for backplane and daughterboard connections. The 305-070 variant specifically addresses applications requiring higher density connectivity within a standard form factor.

Edgeboard Connectors Replacement Considerations

Compatible substitutes include the 305-070-556-568 and 305-070-520-504, provided they match the required pin count, pitch, and mounting style. Verify that alternative parts maintain the same current rating and temperature specifications to ensure system reliability.