305-020-521-278

Edgeboard Connectors Overview

The EDAC Inc. 305-020-521-278 is a standard card edge connector from the 305 Series, designed for dual-edge board applications. It features a 20-position configuration with a 3.96 mm (0.156 inch) pitch across two rows. The connector utilizes gold-plated copper alloy contacts and a green thermoplastic polyester insulator. Rated for 5 A current at temperatures ranging from -40°C to +105°C, it supports PCB thicknesses between 1.37 mm and 1.78 mm. This female receptacle employs solder pin termination for secure electrical connections.

Edgeboard Connectors Feature Summary

• Dual-row female contact configuration for dual-edge card insertion
• Gold-plated copper alloy contacts ensure reliable conductivity
• Thermoplastic polyester housing provides thermal stability
• Solder pin termination secures connection to printed circuit boards

Edgeboard Connectors Applications

• Industrial control system interconnects
• Telecommunications equipment modules
• Medical device internal connections
• Automotive electronic module interfaces

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact physical dimensions and mounting style. Ensure compatibility with target PCB thickness specifications before procurement. Confirm RoHS compliance status through the latest documentation. Cross-reference the part number with authorized distributors to validate supply chain authenticity and avoid counterfeit components.

Edgeboard Connectors Selection Notes

Select this component when a dual-row, 20-position interface is required for double-sided edge cards. The 3.96 mm pitch dictates compatible board layout constraints. Verify that the operating temperature range meets environmental requirements. Consider the panel or PCB mounting style relative to the mechanical assembly design. Ensure the gold plating thickness satisfies long-term wear expectations.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series of standard card edge connectors. The series offers various position counts and mounting configurations. It serves as a reliable interconnect solution for modular electronic systems requiring robust signal transmission. The product line emphasizes durability and consistent performance in demanding industrial environments.

Edgeboard Connectors Replacement Considerations

Consult the EDAC 305 Series ordering guide for direct substitutes with differing position counts or mounting styles. Verify dimensional compatibility before substituting with other manufacturers' products. Ensure equivalent electrical ratings and material specifications are maintained during replacement.