742792642

Overview

The Würth Elektronik 742792642 is a surface-mount EMI suppression ferrite bead from the WE-CBF series, housed in a 0603 (1608 metric) package. It provides an impedance of 470 Ohms at a test frequency of 100 MHz and supports a maximum DC current of 200 mA. The component features a maximum DC resistance of 500 mOhms with a tolerance of 25%. It operates within a temperature range of -55°C to +125°C and holds AEC-Q200 qualification for automotive reliability.

Feature Summary

• Provides high impedance for effective electromagnetic interference suppression in compact designs
• AEC-Q200 qualified for automotive application reliability
• Utilizes reliable Ni-Sn electrodes for soldering compatibility

Applications

• Automotive electronics circuits
• High-speed data line filtering
• Power supply noise suppression

Procurement Notes

Verify the specific impedance value and current rating against the official datasheet before procurement. Confirm that the 0603 package dimensions align with the target PCB footprint. Ensure the supplier provides documentation confirming AEC-Q200 compliance for automotive projects.

Selection Notes

Select this component when a higher impedance value than standard beads is required for narrowband noise attenuation. The 0603 form factor suits space-constrained layouts. Verify that the 200 mA current limit meets the circuit's operational requirements without saturation.

Part Context

This part belongs to the WE-CBF series of SMD ferrite beads designed for EMI suppression. The series offers various impedance values and package sizes, including 0402, 0805, and 1206, to accommodate different design constraints while maintaining consistent material properties and reliability standards.

Replacement Considerations

Check for direct substitutes within the same WE-CBF series offering similar 470 Ohm impedance at 100 MHz. Ensure any replacement maintains the 0603 package size and AEC-Q200 qualification if used in automotive contexts.