782422231

Overview

The Würth Elektronik 782422231 is a surface-mount EMI suppression ferrite bead from the WE-CBA series. It features an impedance of 220 Ohms at 100 MHz and supports a maximum DC current of 300 mA. The component has a maximum DC resistance of 350 mOhms and operates within a temperature range of -55°C to +125°C. It is AEC-Q200 qualified and utilizes a 0402 package footprint.

Feature Summary

• Provides electromagnetic interference suppression through high impedance characteristics
• Qualified for automotive applications under AEC-Q200 standards
• Designed for surface mount technology integration

Applications

• Automotive electronic circuits requiring EMI filtering
• General purpose signal line noise suppression
• Power supply output filtering in compact devices

Procurement Notes

Verify the specific part number against official manufacturer documentation to confirm impedance, current rating, and package dimensions. Ensure compatibility with existing PCB footprints and thermal management requirements before finalizing procurement decisions.

Selection Notes

Select this component when a compact 0402 footprint is required for EMI suppression in space-constrained designs. Consider the 300 mA current limit and 350 mOhm DC resistance for power integrity analysis. Verify AEC-Q200 qualification if the application involves automotive environments.

Part Context

This ferrite bead belongs to the WE-CBA series, which focuses on providing effective noise attenuation in small form factors. The series is engineered for high-frequency applications where minimal board space is available but significant EMI reduction is necessary for circuit stability.

Replacement Considerations

Cross-reference with other 0402 ferrite beads offering similar 220 Ohm impedance at 100 MHz. Ensure substitute components match the 300 mA current handling capability and maintain AEC-Q200 compliance if automotive usage is intended.