305-028-556-203

Edgeboard Connectors Overview

The EDAC Inc. 305-028-556-203 is a standard card edge connector from the 305 series, designed for dual-edge female board-to-board applications. It features 28 positions with a 3.96 mm (0.156 inch) pitch and supports two rows of contacts. The connector utilizes gold-plated copper alloy terminals and a green thermoplastic polyester insulator. It accommodates PCB thicknesses ranging from 1.37 mm to 1.78 mm and operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-edge female configuration for secure mating with non-specified double-sided circuit boards
• Gold-plated copper alloy contacts ensure reliable electrical conductivity and corrosion resistance
• Thermoplastic polyester housing provides structural stability and thermal endurance

Edgeboard Connectors Applications

• Industrial control system interconnections
• Telecommunications equipment backplanes
• Automotive electronic module interfaces

Edgeboard Connectors Procurement Notes

Verify that the target application requires a dual-edge female connector compatible with double-sided PCBs. Confirm the board thickness falls within the specified 1.37 mm to 1.78 mm range to ensure proper mechanical fit. Ensure the operating environment remains between -40°C and +105°C. Check RoHS compliance requirements against project specifications before finalizing procurement.

Edgeboard Connectors Selection Notes

Select this component when a vertical or panel-mount style is not required, as it is designed for direct board insertion. Compare position counts if higher density is needed, noting that the 305 series offers various pin configurations. Consider the 3.96 mm pitch constraint relative to adjacent components on the host board. Verify that the 5 A current rating per contact aligns with the signal load requirements.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors, which are widely used in modular electronic systems. The series provides standardized dimensions and contact arrangements to facilitate interchangeability across different manufacturers' designs. The specific model number encodes the position count, pitch, and termination details.

Edgeboard Connectors Replacement Considerations

Direct substitutes include other EDAC 305 series variants with identical 28-position dual-edge female specifications. Cross-referencing datasheets for matching pitch and PCB thickness tolerances is essential when evaluating alternative suppliers.