305-072-521-578

Edgeboard Connectors Overview

The EDAC 305-072-521-578 is a standard card edge connector receptacle featuring 72 positions in a dual-row configuration. It utilizes a 3.96 mm (0.156 inch) contact spacing and a 3.56 mm row spacing. The component accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). Electrical specifications include a continuous current rating of 5 A and an insulation resistance of 5 GOhms. The contacts are gold-plated copper alloy, while the housing is constructed from thermoplastic polyester. It supports surface mount PCB installation with a straight orientation and operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-row female connector design accepting 0.062 inch nominal thickness PCBs
• Gold-plated copper alloy contacts for reliable signal transmission
• Thermoplastic polyester insulator body with low profile construction
• Supports between-contact and in-contact polarizing keys

Edgeboard Connectors Applications

• Industrial control systems requiring high-density interconnects
• Telecommunications equipment backplanes
• Automotive electronic modules
• Test and measurement instrumentation

Edgeboard Connectors Procurement Notes

Verify the specific suffix code against manufacturer documentation to confirm mounting style and termination type. Ensure compatibility with the target PCB thickness of 1.57 mm. Confirm that the required current rating of 5 A aligns with system power distribution needs. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Edgeboard Connectors Selection Notes

Select this model when a 72-position dual-row interface is required for 0.062 inch thick boards. The 3.96 mm pitch suits applications needing robust mechanical retention. Consider the straight PCB mount orientation for space-constrained layouts. Verify that the thermoplastic polyester housing meets thermal requirements up to 105°C.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 Series, which offers various mounting options and row configurations. The series is designed for standard card edge applications, providing consistent electrical performance across different position counts. The 305-072 variant specifically addresses high-pin-count requirements within the dual-row family.

Edgeboard Connectors Replacement Considerations

Cross-reference with other 305-series variants such as 305-072-520-204 or 305-072-521-204 for similar form factors. Ensure that any substitute maintains the same 3.96 mm pitch and 72-position count. Verify identical PCB thickness acceptance and mounting orientation before integration.