782429161

Overview

The Würth Elektronik 782429161 is a surface-mount EMI suppression ferrite bead from the WE-CBA series, housed in a 0402 (1005 metric) package. It provides an impedance of 160 kΩ at 100 MHz with a rated current capacity of 1 A and a maximum DC resistance of 0.15 Ω. The component features ±25% impedance tolerance and operates within a temperature range of -55°C to +125°C. Designed for high-frequency noise attenuation, it utilizes a monolithic ceramic structure suitable for automated assembly processes.

Feature Summary

• Monolithic ceramic construction for reliable surface-mount integration
• High impedance characteristics effective for broadband noise suppression
• Compact 0402 footprint optimized for dense PCB layouts

Applications

• Portable electronic devices requiring space-efficient filtering
• Data line protection in high-speed communication interfaces
• Power supply input stages for noise reduction

Procurement Notes

Verify the specific suffix codes against official datasheets to confirm impedance values and tolerance ratings. Ensure compatibility with standard reflow soldering profiles defined by the manufacturer. Confirm RoHS compliance status through current documentation before integration into regulated products.

Selection Notes

Select this component when board real estate is limited and high-frequency interference requires significant attenuation. The 1 A current rating supports moderate signal lines, while the low DC resistance minimizes voltage drop. Evaluate thermal management requirements based on the specified operating temperature range.

Part Context

This ferrite bead belongs to the WE-CBA series, which focuses on compact EMI suppression solutions. The series offers various impedance options in small form factors, addressing the growing demand for miniaturized passive components in modern consumer electronics and industrial applications.

Replacement Considerations

Cross-reference alternative suppliers for equivalent 0402 ferrite beads with similar 160 kΩ impedance and 1 A current ratings. Verify that substitute components match the physical dimensions and electrical characteristics to ensure seamless circuit board replacement.