306-020-521-178

Overview

The EDAC Inc. 306-020-521-178 is a standard card edge connector from the 306 Series, designed for reliable signal transmission in electronic assemblies. It features 40 positions with a contact spacing of 0.156 inches (3.96 mm). The connector utilizes PC tail contacts with gold plating on the contact area to ensure durability and low contact resistance. It accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57 mm) and employs a low-profile insulator body constructed from thermoplastic polyester.

Feature Summary

• Features a low-profile insulator body for compact board integration
• Utilizes PC tail contacts with gold plating for enhanced conductivity
• Designed to accept PCBs with a nominal thickness of 0.062 inches

Applications

• Industrial control systems requiring robust interconnects
• Telecommunications equipment with space constraints
• Computer peripheral devices needing dual-edge connectivity

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm exact pin count, termination style, and material specifications. Ensure compatibility with the target PCB thickness of 0.062 inches. Confirm RoHS compliance status if required by project regulations. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a 40-position connection is required with a 3.96 mm pitch. It is suitable for applications demanding a low-profile form factor and durable gold-plated contacts. Consider the through-hole mounting style and vertical orientation during mechanical design. Verify that the copper alloy contact material meets the electrical performance requirements of the system.

Part Context

This connector belongs to the EDAC 306 Series, which specializes in card edge connectors with 0.156-inch contact spacing. The series offers various position counts and mounting options to support diverse electronic packaging needs. The 306-020-521-178 specifically provides a dual-edge female configuration, making it ideal for connecting double-sided circuit boards in high-density environments.

Replacement Considerations

Direct substitutes within the same series include parts like 306-020-520-178, which shares similar structural characteristics but may differ in specific terminal configurations or housing colors. Always verify dimensional tolerances and electrical ratings before swapping components to ensure mechanical fit and functional integrity.