742792641

Overview

The Würth Elektronik 742792641 is a surface-mount EMI suppression ferrite bead from the WE-CBF series. It features a 0603 (1608 metric) package with dimensions of 1.6 mm length, 0.8 mm width, and 0.5 mm height. The component provides an impedance of 300 Ohms at 100 MHz and supports a maximum DC current of 2000 mA. It has a maximum DC resistance of 15 mOhms and operates within a temperature range of -55°C to +125°C. The part is AEC-Q200 qualified for automotive applications.

Feature Summary

• Provides effective electromagnetic interference suppression in compact surface-mount form factors
• Engineered for high-current handling capabilities suitable for power line filtering
• Qualified for automotive electronic environments ensuring reliability under thermal stress

Applications

• Automotive electronics systems requiring AEC-Q200 compliance
• High-speed digital signal line filtering
• Power supply output noise suppression

Procurement Notes

Verify the specific impedance tolerance and DC resistance values against the official manufacturer datasheet prior to integration. Confirm that the 0603 package footprint aligns with the target PCB design rules. Ensure the selected supplier sources directly from authorized channels to guarantee component authenticity and traceability for quality assurance purposes.

Selection Notes

Select this component when space constraints necessitate a 0603 footprint while requiring significant current handling capacity. The 300 Ohm impedance at 100 MHz targets common mode noise reduction in sensitive digital interfaces. Consider the low DC resistance to minimize voltage drop and power loss in high-current paths compared to higher-resistance alternatives.

Part Context

This ferrite bead belongs to the WE-CBF series, designed specifically for EMI suppression in modern electronic assemblies. The series offers various impedance and current ratings across multiple standard package sizes. The 742792641 variant addresses the need for robust noise filtering in automotive and industrial applications where reliability and small form factor are critical requirements.

Replacement Considerations

Cross-reference with other WE-CBF series parts for different impedance or current ratings if system requirements change. Verify mechanical compatibility with existing footprints before substituting with components from other manufacturers.