305-054-556-502

Edgeboard Connectors Overview

The EDAC Inc. 305-054-556-502 is a dual-edge female card edge connector designed for board-to-board or adapter applications. It features 54 positions arranged in two rows with a 0.156-inch (3.96mm) pitch. The connector utilizes gold-plated copper alloy contacts with a thickness of 10.0µin (0.25µm) and half-beam contact types. It supports PCB thicknesses ranging from 0.054 to 0.070 inches (1.37mm to 1.78mm). The housing is green thermoplastic polyester, rated for operation between -40°C and +105°C. It employs straddle mount installation with solder termination.

Edgeboard Connectors Feature Summary

• Dual-edge female configuration for non-specified card types
• Gold-plated half-beam contacts for reliable signal transmission
• Straddle mount design for secure board edge attachment
• Thermoplastic polyester insulation for thermal stability

Edgeboard Connectors Applications

• Board edge extension adapters
• Interconnection between circuit boards via card edge interfaces
• Industrial control panel wiring
• Telecommunications equipment backplanes

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against official EDAC documentation to ensure correct plating thickness and flange dimensions. Confirm RoHS compliance status through current manufacturer declarations. Check lead times as these components are often made-to-order. Ensure storage conditions maintain integrity prior to assembly.

Edgeboard Connectors Selection Notes

Select this component when a dual-sided connection is required for standard thickness cards. Verify that the mating card edge fits within the specified 1.37mm to 1.78mm range. Consider the straddle mount style for applications requiring robust mechanical retention without through-hole pins on the mating side.

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 styles. The 305-054 variant specifically provides 54 contacts, balancing high density with standard spacing. It is commonly used in modular electronic systems requiring reliable interconnects.

Edgeboard Connectors Replacement Considerations

Direct substitutes must match the 54-position count, 0.156-inch pitch, and dual-edge female configuration. Compatible parts from other manufacturers require verification of flange diameter and mounting hole alignment. Ensure equivalent electrical ratings and material specifications for thermal performance.