78279224551

Overview

The Würth Elektronik 78279224551 is a surface-mount power line ferrite bead from the WE-MPSA series. It features a 2220 (5750 Metric) package with an impedance of 550 Ohms at 100 MHz and a DC resistance of 35 mOhm. The component supports a rated current of 4A and operates within a temperature range of -55°C to +125°C. It holds AEC-Q200 qualification for automotive reliability.

Feature Summary

• Designed for EMI suppression in power line applications
• Automotive qualified under AEC-Q200 standards
• Surface mount construction for automated assembly

Applications

• Automotive electronics power filtering
• General EMI suppression in power circuits
• High-current signal line noise reduction

Procurement Notes

Verify the specific part number against official Wurth Elektronik documentation to confirm electrical ratings and package dimensions. Ensure compliance with RoHS requirements and check for any specific handling instructions regarding rated current limits to prevent excessive heat generation during operation.

Selection Notes

Select this component for applications requiring high current handling capability alongside significant impedance at 100 MHz. The low DC resistance minimizes power loss, while the AEC-Q200 rating ensures suitability for automotive environments. Confirm that the 2220 footprint fits the design constraints.

Part Context

This ferrite bead belongs to the WE-MPSA series, which focuses on power line applications. Unlike snap-on beads, this surface-mount device offers consistent performance for PCB-integrated designs. The material composition provides stable impedance characteristics across the specified operating temperature range.

Replacement Considerations

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