78279224151

Overview

The Würth Elektronik 78279224151 is a WE-MPSA series multilayer power suppression ferrite bead designed for EMI noise reduction. It features a 2220 (5550 Metric) surface-mount package and offers an impedance of 150 Ohms at the specified frequency. The component supports a maximum DC current rating of 5 Amperes with a low DC resistance of 10 milliohms. It is certified to AEC-Q200 standards, ensuring reliability for automotive applications.

Feature Summary

• Multilayer construction for effective electromagnetic interference suppression in power lines
• Automotive-grade certification compliant with AEC-Q200 reliability standards
• Low DC resistance design minimizes power loss while handling high current loads

Applications

• Automotive electronic systems requiring EMI filtering
• Power supply output stages for noise attenuation
• High-current signal line protection

Procurement Notes

Verify the specific datasheet version and AEC-Q200 qualification status directly with Wurth Elektronik or authorized distributors. Confirm that the 2220 package dimensions and terminal configurations match your PCB footprint requirements. Ensure the 5A current rating and 150 Ohm impedance specifications align with your circuit's operational parameters before finalizing procurement.

Selection Notes

Select this component when high current handling capability is required alongside significant EMI suppression. The 2220 package provides a balance between thermal performance and board space efficiency. Consider the 10 milliohm DC resistance for applications where voltage drop must be minimized. Verify compatibility with reflow soldering profiles suitable for multilayer ceramic structures.

Part Context

This part belongs to the WE-MPSA series, which specializes in multilayer power suppression beads. These components are engineered to replace traditional wire-wound ferrites in high-current applications, offering superior performance in compact surface-mount formats. The series is widely used in automotive and industrial electronics for robust noise control.

Replacement Considerations

Check for direct substitutes within the WE-MPSA series with matching 150 Ohm impedance and 5A current ratings. Ensure any replacement maintains the 2220 package outline and AEC-Q200 certification if automotive use is intended. Verify thermal and electrical characteristics against the original specification sheet.