306-035-521-168

Overview

The EDAC Inc. 306-035-521-168 is a dual-edge female card edge connector designed for panel and through-hole mounting. It features 70 positions with a 0.156-inch (3.96mm) contact spacing arranged in two rows. The contacts are made of copper alloy with a gold finish, utilizing a cantilever design. The insulator is constructed from thermoplastic polyester and is green in color. It accepts printed circuit boards with thicknesses ranging from 0.054 to 0.070 inches (1.37mm to 1.78mm). The unit includes flange features for flush installation with top openings and threaded inserts compatible with 4-40 screws.

Feature Summary

• Dual-edge female configuration with cantilever contact type for secure board retention
• Gold-plated copper alloy contacts ensuring reliable electrical performance
• Thermoplastic polyester insulator body providing structural stability
• Panel mount design with integrated flange and threaded insert provisions

Applications

• Industrial control systems requiring robust card edge interfaces
• Telecommunications equipment backplanes
• Test and measurement instrumentation modules
• Automotive electronic control units

Procurement Notes

Verify the specific part number against official EDAC Inc. documentation to confirm current availability and manufacturing status. Ensure that the required board thickness falls within the specified range of 0.054 to 0.070 inches. Confirm that the mounting environment supports the operating temperature range of -40°C to 105°C. Check for compliance with RoHS3 standards if environmental regulations apply to the final assembly. Cross-reference the flange specifications to ensure compatibility with the intended chassis or panel cutouts.

Selection Notes

Select this component when a high-density dual-edge interface is required with a 0.156-inch pitch. The 70-position count suits applications needing substantial I/O connectivity on a single card. The through-hole termination method offers mechanical strength compared to surface-mount alternatives. Consider the green thermoplastic polyester material for general-purpose insulation needs. The cantilever contact design simplifies insertion and extraction processes during maintenance or module replacement cycles.

Part Context

This connector belongs to the EDAC 306 series, which specializes in card edge and edgeboard connectors. The series is characterized by its durable construction and standardized spacing options. The 306-035-521-168 variant specifically addresses the need for 70-position connectivity. It complements other models in the lineup that offer different pin counts and spacing configurations. The series is widely used in sectors demanding reliable interconnect solutions for modular electronic designs.

Replacement Considerations

Direct substitutes within the same series include parts like 306-035-521-158 or 306-035-521-107, provided they match the position count and spacing. Verify that any alternative maintains the same 0.156-inch pitch and dual-edge female configuration. Ensure the replacement part supports the same board thickness and mounting requirements. Consult the official EDAC ordering guide for cross-referencing valid equivalents.