782429102

Overview

The Würth Elektronik 782429102 is a surface-mount ferrite bead from the WE-CBA series, housed in a compact 0402 (1005 metric) package. It provides an impedance of 1 kΩ at high frequencies with a maximum DC resistance of 0.48 Ω and a current rating of 480 mA. The component features a tolerance of ±25% and is designed for noise suppression in space-constrained electronic circuits.

Feature Summary

• Provides high-frequency noise attenuation through significant impedance characteristics
• Compact surface-mount footprint suitable for dense PCB layouts
• Low DC resistance to minimize signal loss and power dissipation

Applications

• High-speed data line filtering
• Power supply output noise suppression
• RF circuit interference mitigation

Procurement Notes

Verify the specific impedance value and tolerance against the manufacturer's datasheet prior to ordering. Confirm that the 0402 package dimensions align with your PCB land pattern requirements. Ensure the 480 mA current rating meets the operational demands of your target circuit application.

Selection Notes

Select this component when high impedance is required in a minimal footprint. The low DC resistance preserves signal integrity while attenuating unwanted high-frequency noise. Consider the ±25% tolerance when designing strict noise margin specifications for sensitive analog or digital interfaces.

Part Context

This ferrite bead belongs to the WE-CBA series, which focuses on providing effective electromagnetic interference suppression in miniature packages. The 0402 size allows integration into modern consumer electronics and portable devices where board real estate is limited but noise control remains critical for compliance and performance.

Replacement Considerations

Check for equivalent 0402 ferrite beads with similar 1 kΩ impedance and 480 mA ratings. Verify pin compatibility and thermal characteristics before substituting with components from other manufacturers.