305-020-556-203

Edgeboard Connectors Overview

The EDAC Inc. 305-020-556-203 is a dual-edge female card edge connector featuring 20 positions arranged in two rows with a 0.156-inch (3.96 mm) pitch. Designed for through-hole mounting, it utilizes gold-plated copper alloy contacts and a green thermoplastic polyester insulator. The unit supports printed circuit boards with thicknesses ranging from 0.054 to 0.070 inches (1.37 to 1.78 mm). It operates within a temperature range of -40°C to +105°C and complies with RoHS3 standards.

Edgeboard Connectors Feature Summary

• Dual-row configuration for high-density signal routing
• Gold-plated contacts ensure reliable electrical performance
• Thermoplastic polyester insulation provides thermal stability

Edgeboard Connectors Applications

• Industrial control systems requiring robust interconnects
• Telecommunications equipment backplanes
• Test and measurement instrumentation modules

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official 305 Series Ordering Guide to confirm exact pin count, plating thickness, and flange specifications. Ensure compatibility with the target PCB board thickness limits defined in the datasheet. Confirm that the through-hole termination method aligns with the assembly process requirements before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a dual-sided card edge interface is required for non-specified card types. The 0.156-inch pitch accommodates standard board layouts while the panel mount style offers secure installation. Evaluate the 5 A current rating and 5 GOhm insulation resistance against system electrical demands to ensure adequate safety margins for the intended application environment.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, which provides various mounting options including panel and PCB styles. The series is characterized by its 3.96 mm pitch and availability in multiple position counts. The 305-020-556-203 specifically addresses applications needing a 20-position dual-row connector with through-hole termination capabilities.

Edgeboard Connectors Replacement Considerations

Consult the EDAC 305 Series cross-reference documentation for direct substitutes. Verify that alternative parts maintain identical 0.156-inch pitch, 20-position count, and dual-edge contact configuration. Ensure mechanical dimensions and mounting hole patterns match the existing design constraints.