306-021-400-178

Overview

The EDAC Inc. 306-021-400-178 is a standard card edge connector from the 306 series, designed for through-hole mounting with a straight installation angle. It features 21 positions in a single row configuration, utilizing a 3.96 mm (0.156 inch) contact spacing. The connector accepts non-specified dual-edge cards and employs female contacts made of copper alloy with tin plating. Rated for 5 A current, it operates within a temperature range of -40°C to +105°C. The housing is constructed from thermoplastic polyester, providing an insulation resistance of 5 GOhms.

Feature Summary

• Utilizes wire hole type contacts for secure solder termination
• Features tin-plated copper alloy contacts for reliable conductivity
• Designed for through-hole mounting on printed circuit boards

Applications

• Industrial control systems requiring robust interconnects
• Communication equipment board-to-board connections
• Consumer electronics assembly applications

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to ensure correct contact plating and housing color specifications. Confirm that the required card thickness falls within the mechanical acceptance limits defined in the official datasheet. Check regional availability as distribution status may vary by location. Ensure compatibility with existing PCB layout constraints regarding row count and pitch dimensions before finalizing procurement orders.

Selection Notes

Select this component when a single-row, 3.96 mm pitch card edge connector is required for through-hole assembly. The tin-plated contacts offer a cost-effective solution compared to gold variants while maintaining adequate performance for general-purpose applications. Consider the 5 A current rating and high operating temperature limit when designing for environments with significant thermal loads or power density requirements.

Part Context

This part belongs to the EDAC 306 series, which specializes in standard card edge connectors with 3.96 mm spacing. The series offers various position counts and mounting styles to accommodate diverse electronic design needs. EDAC provides comprehensive support materials including CAD models and detailed specification sheets to assist engineers in integrating these connectors into their hardware architectures effectively.

Replacement Considerations

Direct substitutes within the same series include parts like 306-021-400-112, which shares identical mechanical dimensions but differs in contact plating. Verify that any alternative maintains the same 21-position count and single-row configuration to ensure physical compatibility with the existing PCB footprint and mating card edge.