306-039-520-178

Overview

The EDAC Inc. 306-039-520-178 is a standard card edge connector receptacle from the 306 series, designed for through-hole mounting with a straight orientation. It features 39 positions arranged in a dual female configuration, providing a total of 78 contact points. The connector utilizes a 3.96 mm (0.156 inch) contact spacing and accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). Contacts are gold-plated copper alloy tails measuring 1.17 mm by 0.38 mm, rated for 5 A current. The insulator body is constructed from thermoplastic polyester.

Feature Summary

• Dual-edge female contact design accommodating two-sided card edges
• Gold-plated copper alloy termination tails for reliable signal integrity
• Through-hole solder mounting style with straight installation angle
• Thermoplastic polyester insulator body for structural stability

Applications

• High-density electronic module interconnections
• Industrial control system backplane interfaces
• Telecommunications equipment board-to-board connections
• Automotive electronics subsystem integration

Procurement Notes

Verify that the specific suffix 178 corresponds to the required tail type and plating specification as defined in the official EDAC datasheet. Confirm RoHS compliance status and ensure the ordering information matches the exact 39-position dual configuration. Cross-reference the manufacturer part number against authorized distributor catalogs to avoid counterfeit components.

Selection Notes

Select this component when a dual-edge female connector with 3.96 mm pitch is required for 1.57 mm thick PCBs. Ensure the application environment supports the thermal properties of the polyester insulator. Verify that the 5 A current rating per contact aligns with the system's electrical load requirements and that through-hole assembly processes are compatible with the specified tail dimensions.

Part Context

This component belongs to the EDAC 306 series, which provides standardized card edge connectors with 0.156 inch contact spacing. The series offers various position counts and mounting options, utilizing low-profile insulator bodies. The 306-039-520-178 variant specifically addresses applications requiring dual-edge connectivity with gold-plated contacts for enhanced durability and conductivity in industrial settings.

Replacement Considerations

Direct substitutes within the same series include part numbers such as 306-039-420-178 or 306-039-400-178, provided they match the required contact termination and plating specifications. Verify mechanical compatibility before substitution.