357-078-424-278

Edgeboard Connectors Overview

The EDAC Inc. 357-078-424-278 is a standard card edge connector from the 357 series, designed for vertical panel mounting. It features 78 positions with a dual female configuration and a 0.156-inch (3.96 mm) pitch. The contacts are tin-plated copper alloy, rated for 5 A current. The housing is black thermoplastic polyester, supporting a board thickness of 0.062 inches (1.57 mm). Operating temperature ranges from -40°C to +105°C, with an insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Dual-edge female contact configuration for secure card insertion
• Vertical panel mount style for stable structural integration
• Tin-plated contacts on copper alloy substrate for reliable conductivity

Edgeboard Connectors Applications

• Industrial control systems requiring robust interconnects
• Medical equipment internal circuit board connections
• Agricultural technology hardware in harsh environments

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the official EDAC datasheet to ensure correct plating and termination type. Confirm that the tin-plated variant matches the design requirement, as gold-plated options exist within the same series. Check lead times as manufacturing cycles may vary. Ensure compatibility with the target PCB edge thickness and panel mounting constraints before finalizing procurement.

Edgeboard Connectors Selection Notes

Select this component when a high-density 78-position connection is required with vertical panel mounting capabilities. The 3.96 mm pitch allows for compact layout while maintaining adequate spacing. Consider the tin plating for cost-effective applications where extreme corrosion resistance is not critical, contrasting with gold-plated alternatives in the 357 series for different environmental needs.

Edgeboard Connectors Part Context

This part belongs to the EDAC 357 series of standard card edge connectors. The series offers various position counts and plating options, including gold and tin variants. The 357 series is characterized by its durable thermoplastic polyester housing and consistent 3.96 mm pitch, widely used across industrial and medical sectors for reliable signal transmission.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the 357 series include parts with identical pin counts but different plating, such as 357-078-424-202 (gold-plated) or 357-078-424-212. Verify mechanical fit and electrical ratings before substitution.