306-035-421-178

Overview

The EDAC Inc. 306-035-421-178 is a standard card edge connector receptacle featuring 70 positions with a 0.156-inch (3.96mm) contact spacing. It utilizes a dual-edge configuration and accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57mm). The contacts are gold-plated on the mating area and tin-plated on the tails, housed in a UL 94V-0 thermoplastic polyester insulator body.

Feature Summary

• Dual-edge receptacle design for secure board insertion
• Gold plating on mating surfaces ensures reliable electrical contact
• Low-profile insulator body constructed from UL 94V-0 rated material

Applications

• Standard card edge interconnection systems
• Industrial control panel assemblies
• Telecommunications equipment backplanes

Procurement Notes

Verify the specific ordering suffix to confirm contact plating specifications, as variations exist within the series. Confirm that the target application requires a dual-edge receptacle rather than a single-edge variant. Ensure the PCB thickness matches the 0.062-inch nominal requirement for proper mechanical fit. Check regional availability restrictions if sourcing through specific distributors.

Selection Notes

Select this component when a high-density connection is required for double-sided edge cards. The 70-position count supports complex signal routing needs. Verify that the vertical mounting style aligns with the chassis design constraints. Consider the thermal properties of the polyester insulator for operating environments.

Part Context

This part belongs to the EDAC 306 series of standard card edge connectors. The series offers various position counts and mounting styles. The 306 series is designed for general-purpose electronic applications requiring robust mechanical retention and stable electrical performance.

Replacement Considerations

Cross-reference with other EDAC 306-series parts for different position counts. Verify compatibility with existing PCB footprints before substituting.