782429261

Overview

The Würth Elektronik WE-CBA 782429261 is a surface-mount ferrite bead designed for signal line noise suppression. It features a 0402 (1005 Metric) package with an impedance of 260 Ohms at 100 MHz and 375 Ohms at 300 MHz. The component supports a current rating of 1000 mA and exhibits a maximum DC resistance of 0.15 Ohms. It operates within a temperature range of -55°C to +125°C, providing compact EMI filtering for high-density circuit boards.

Feature Summary

• Provides effective electromagnetic interference suppression on signal lines through high-frequency impedance characteristics.
• Utilizes a compact 0402 surface-mount footprint to support space-constrained PCB layouts.
• Capable of handling continuous currents up to 1000 mA without saturation.

Applications

• High-speed digital signal line filtering
• Clock circuit noise attenuation
• USB and data interface EMI suppression

Procurement Notes

Verify the specific impedance tolerance and DC resistance values against the official datasheet prior to integration. Confirm that the 0402 package dimensions align with the target PCB land pattern. Ensure the operating temperature range meets the environmental requirements of the final assembly. Cross-reference the manufacturer part number to avoid confusion with similar series components.

Selection Notes

Select this component when space is limited and moderate current handling is required for signal integrity. The low DC resistance minimizes voltage drop across the line. Consider the impedance profile at the specific noise frequency rather than just the peak value. Evaluate thermal management needs if the component operates near its maximum current rating in enclosed environments.

Part Context

This component belongs to the WE-CBA series of chip ferrite beads from Würth Elektronik. These parts are engineered for general-purpose noise suppression in consumer electronics and industrial equipment. The series offers various impedance ratings and package sizes to accommodate different circuit constraints and frequency requirements.

Replacement Considerations

Check for direct substitutes within the WE-CBA series with matching 0402 footprints. Verify that alternative ferrite beads maintain comparable impedance curves at 100 MHz and 300 MHz. Ensure replacement parts support the same 1000 mA current rating and meet RoHS compliance standards.

FAQ

What is the impedance value at 300 MHz?

The impedance is 375 Ohms at 300 MHz.

Does this ferrite bead saturate at 1000 mA?

The component is rated for a continuous current of 1000 mA, which is its specified operational limit.