305-052-556-203

Edgeboard Connectors Overview

The EDAC Inc. 305-052-556-203 is a standard card edge connector from the 305 series, featuring 52 positions arranged in a dual-row configuration. It utilizes a 3.96 mm (0.156 inch) pitch and accepts PCBs with thicknesses between 1.37 mm and 1.78 mm. The connector provides a continuous current rating of 5 A and supports 1800 VACrms insulation voltage. Contacts are gold-plated copper alloy with a half-beryllium spring design, ensuring reliable mating. The housing is green thermoplastic polyester, rated for operation between -40°C and +105°C.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure positioning
• Features half-beryllium spring contacts for consistent electrical performance
• Designed for panel mount installation with vertical orientation

Edgeboard Connectors Applications

• Industrial control systems requiring robust card edge interfaces
• Telecommunications equipment backplanes
• Test and measurement instrumentation modules

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix to confirm contact plating thickness and housing color variations. Ensure compatibility with the target PCB stack-up and polarizing key requirements before procurement. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets. Cross-reference the part number against the latest EDAC 305 Series Ordering Guide to avoid substitution errors.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge interface with a 3.96 mm pitch is required. It is suitable for applications needing high current capacity and durable thermal performance. Consider the panel mount style and vertical orientation during mechanical layout. Verify that the PCB thickness falls within the specified acceptance range for proper contact engagement.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, a line of standard card edge connectors designed for high-reliability interconnects. The series offers various position counts and mounting styles. The 305-052 variant specifically addresses needs for moderate density connections with robust mechanical retention. It complements other EDAC solutions for rack and panel applications.

Edgeboard Connectors Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult EDAC technical support for cross-reference recommendations if this specific model is unavailable.