782422331

Overview

The Würth Elektronik 782422331 is a surface-mount EMI suppression ferrite bead from the WE-CBA series. It features a 0402 package with an impedance of 330 Ω at 100 MHz and a maximum DC current rating of 500 mA. The component has a maximum DC resistance of 300 mΩ and operates within a temperature range of -55°C to +125°C. It complies with RoHS standards and is designed for compact electronic assemblies requiring effective high-frequency noise attenuation.

Feature Summary

• Provides effective electromagnetic interference suppression in space-constrained designs
• Utilizes a compact 0402 surface-mount footprint for automated assembly
• Engineered for stable performance across wide industrial temperature ranges

Applications

• Portable consumer electronics
• Automotive infotainment systems
• Compact communication modules

Procurement Notes

Verify the specific impedance value and current rating against the official datasheet before integration. Confirm that the 0402 package dimensions align with the target PCB footprint. Ensure compliance with project-specific environmental regulations such as RoHS. Cross-reference the manufacturer part number to avoid confusion with similar series components.

Selection Notes

Select this component when high impedance is required in minimal board space. The 500 mA current handling suits low-power signal lines. Evaluate thermal constraints given the small package size. Compare alternative impedances if specific frequency filtering differs from standard broadband suppression needs.

Part Context

This ferrite bead belongs to the WE-CBA series, which focuses on miniaturized EMI solutions. It complements other surface-mount passive components by offering targeted noise reduction without increasing board area. The series supports modern manufacturing trends toward smaller, denser circuit boards.

Replacement Considerations

Check for direct substitutes with identical 330 Ω impedance and 0402 dimensions. Verify equivalent current ratings and DC resistance values. Ensure compatibility with existing soldering profiles and reflow temperatures.