305-072-520-203

Edgeboard Connectors Overview

The EDAC 305-072-520-203 is a standard card edge connector receptacle featuring 72 positions arranged in a dual-row configuration. It utilizes a 3.96 mm (0.156 inch) pitch and accepts PCBs with a thickness of 1.57 mm. The contacts are made of copper alloy with gold plating, supporting a continuous current rating of 5 A. Designed for PCB mount installation at a straight angle, the housing is constructed from thermoplastic polyester. The component operates within a temperature range of -40°C to +105°C and offers an insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure mating
• Features half-beam contact type for reliable signal transmission
• Utilizes gold-plated copper alloy contacts for corrosion resistance
• Supports flush mounting with top opening flange characteristics

Edgeboard Connectors Applications

• Industrial control systems requiring robust edge board connections
• Communication equipment utilizing dual-edge card interfaces
• Automotive electronics modules needing high-current capacity
• Medical devices requiring stable thermal performance

Edgeboard Connectors Procurement Notes

Verify the specific suffix code against official EDAC documentation to confirm exact plating thickness and flange dimensions. Ensure compatibility with the target PCB thickness of 1.57 mm before integration. Confirm RoHS compliance status through the manufacturer's latest environmental declaration. Cross-reference the part number with authorized distributor catalogs to validate authenticity and avoid counterfeit components.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge interface with 72 positions is required. The 3.96 mm pitch accommodates standard board layouts while the 5 A rating supports moderate power applications. Consider the straight mounting style for space-constrained vertical installations. Verify that the operating temperature range meets the environmental demands of the final assembly.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series provides various position counts and row configurations for diverse interconnect needs. Components in this family share common design principles regarding contact material and housing durability. The 305 series is widely used in general-purpose electronic assemblies requiring reliable mechanical and electrical connections.

Edgeboard Connectors Replacement Considerations

Direct substitutes include EDAC part numbers 305-072-520-204 and 305-072-521-202. Verify that alternative suffixes match the required flange features and plating specifications. Ensure that any replacement maintains the same 72-position count and 3.96 mm pitch to fit existing PCB footprints.