305-020-521-203

Edgeboard Connectors Overview

The EDAC Inc. 305-020-521-203 is a standard card edge connector from the 305 series, designed for dual-row applications. It features 20 positions with a contact spacing of 3.96 mm (0.156 inches) and a row spacing of 3.56 mm (0.140 inches). The connector accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inches). Constructed with copper alloy contacts that are gold-plated, it supports a continuous current rating of 5 A and withstands 1800 VACrms. The insulator body is made of green thermoplastic polyester, offering an insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Dual-row configuration accepting between-contact and in-contact polarizing keys
• Low profile insulator body constructed from green thermoplastic polyester
• Gold-plated copper alloy contacts ensuring reliable electrical performance

Edgeboard Connectors Applications

• Electronic modules requiring secure card edge interfacing
• Industrial control systems utilizing standardized board dimensions
• Communication equipment needing high-density connection points

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix to confirm the exact pin configuration and mounting style required for your assembly. Ensure compatibility with the target PCB thickness of 1.57 mm before finalizing procurement. Cross-reference the manufacturer datasheet to validate environmental ratings against operational conditions. Confirm availability through authorized distributors as supply chains may vary by region.

Edgeboard Connectors Selection Notes

Select this component when a dual-row interface with 20 positions is necessary for panel or vertical mounting applications. The 3.96 mm pitch provides robust spacing for high-voltage isolation requirements up to 1800 VACrms. Consider the gold plating for superior corrosion resistance in demanding environments. Evaluate the low-profile design if space constraints exist within the enclosure layout.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors, which are engineered for durability and precise alignment. The series offers various position counts and mounting styles to accommodate diverse electronic packaging needs. These connectors are widely utilized in sectors requiring reliable interconnect solutions for modular hardware designs.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include parts like 305-020-520-502 or 305-020-521-501, depending on the required mounting orientation and termination type. Verify that any alternative maintains the identical 3.96 mm pitch and 20-position count to ensure mechanical fit.