742792780

Overview

The Würth Elektronik 742792780 is a surface-mount ferrite bead chip from the WE-CBF series, designed for high-frequency noise suppression in single-signal lines. Housed in a compact 0402 (1005 metric) package with dimensions of 1.00mm x 0.50mm x 0.55mm, it provides an impedance of 220 Ohms at 100 MHz. The component supports a maximum DC current of 300 mA and features a maximum DC resistance of 350 mOhms. It operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards.

Feature Summary

• Provides effective electromagnetic interference suppression for high-frequency noise on single signal lines
• Automotive-grade reliability certified under AEC-Q200 standards for harsh environment durability
• Utilizes reliable nickel-tin electrodes suitable for standard reflow soldering processes

Applications

• High-speed digital signal line filtering in consumer electronics
• Noise suppression in automotive electronic control units
• EMI mitigation in portable communication devices

Procurement Notes

Verify the specific impedance tolerance and DC resistance values against the official datasheet prior to integration. Confirm that the 0402 footprint matches the target PCB layout constraints. Ensure the selected packaging format aligns with automated assembly requirements. Cross-reference the AEC-Q200 certification status if the application mandates strict automotive compliance protocols.

Selection Notes

Select this component when space-constrained designs require effective high-frequency noise attenuation on low-current signal paths. The 0402 package offers a balance between size and performance for dense layouts. Consider the 300 mA current rating to ensure the component does not saturate or overheat during normal operation. The wide operating temperature range makes it suitable for diverse environmental conditions.

Part Context

This ferrite bead belongs to the WE-CBF series, which focuses on miniaturized EMI suppression solutions. The series includes various package sizes such as 0603, 0805, and 1206 to accommodate different current and impedance needs. The 742792780 specifically targets applications requiring compact footprints with moderate current handling capabilities.

Replacement Considerations

Check for alternative part numbers within the same WE-CBF series that offer similar impedance characteristics but different package sizes if board space allows. Verify compatibility with existing supply chain sources for equivalent components.