74279224151

Overview

The Würth Elektronik 74279224151 is a WE-MPSB series SMD EMI suppression ferrite bead in a 2220 (5550 metric) package. It exhibits an impedance of 150 Ohms at 100 MHz and supports a maximum DC current of 5 A. The component has a maximum DC resistance of 0.01 Ohms with a tolerance of ±25%. It operates within a temperature range of -55°C to +125°C and holds AEC-Q200 qualification for automotive reliability.

Feature Summary

• High-performance surface mount design offering significantly increased rated current load compared to standard variants
• Drastically reduced DC resistance to minimize power loss in high-current applications
• Automotive-grade construction certified under the AEC-Q200 reliability standard

Applications

• Power supply input filtering in automotive electronic systems
• EMI suppression on high-current data lines
• Noise reduction in vehicle infotainment and control unit power stages

Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm exact electrical characteristics, as variations may exist within the series. Confirm that the AEC-Q200 certification status aligns with your project's automotive quality requirements. Ensure the 2220 package dimensions fit your PCB layout constraints before finalizing procurement decisions.

Selection Notes

Select this component when high current handling capability is critical alongside effective high-frequency noise attenuation. The low DC resistance makes it suitable for power rails where efficiency is paramount. Consider the 2220 footprint availability and ensure the 5A rating exceeds the peak operational current of the target circuit to prevent saturation or thermal issues.

Part Context

This part belongs to the WE-MPSB family, which Würth Elektronik identifies as a specialized line for multilayer power suppression. These components are engineered to address the demands of modern automotive electronics requiring robust EMI protection without compromising current capacity. The series represents a distinct category from standard signal-line ferrites due to its power-handling focus.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided source material.