782639220

Overview

The Würth Elektronik WE-CBA 782639220 is a surface-mount EMI suppression ferrite bead designed for high-current applications. It features a 0402 (1005 metric) package with an impedance of 22 ohms at 100 MHz. The component supports a maximum DC current of 7.5 A and has a maximum DC resistance of 4 milliohms. It operates within a temperature range of -55°C to +125°C and holds AEC-Q200 qualification.

Feature Summary

• High current handling capability up to 7.5 A
• Compact 0402 surface-mount footprint
• AEC-Q200 automotive qualification

Applications

• Automotive electronics power lines
• EMI suppression in high-current circuits
• Portable device power management

Procurement Notes

Verify the package designation carefully, as some distributor listings reference 0603 dimensions while others specify 0402. Confirm the 22-ohm impedance and 7.5 A rating against the official datasheet to ensure compatibility with your circuit requirements before ordering.

Selection Notes

Select this component when space constraints require a small SMD ferrite bead capable of managing significant DC currents. The low DC resistance minimizes voltage drop, making it suitable for power rail filtering where efficiency is critical alongside noise suppression.

Part Context

This part belongs to the WE-CBA series of SMT EMI suppression ferrite beads from Würth Elektronik. The series focuses on providing effective noise attenuation in compact packages suitable for modern dense PCB layouts, particularly in automotive and industrial sectors requiring robust performance.

Replacement Considerations

Check for direct substitutes within the WE-CBA series that match the 22-ohm impedance and 7.5 A current rating. Ensure any replacement maintains the same 0402 package size and AEC-Q200 qualification if automotive compliance is required.