742792035

Overview

The Würth Elektronik part number 742792035 is a surface-mount EMI suppression ferrite bead belonging to the WE-CBF series. It utilizes an 0805 (2012 metric) package with dimensions of 2.0 mm length, 1.2 mm width, and 0.9 mm height. The component provides an impedance of 300 ohms at a test frequency of 100 MHz. It supports a maximum DC current rating of 300 mA and features a maximum DC resistance of 600 milliohms. The device operates within a temperature range of -55°C to +125°C and complies with AEC-Q200 automotive qualification standards.

Feature Summary

• Provides high-impedance attenuation for high-frequency noise in compact surface-mount layouts
• Engineered for automotive reliability through AEC-Q200 qualification certification
• Designed for low power loss applications with minimal DC resistance impact

Applications

• Automotive electronic circuit protection
• High-speed digital signal line filtering
• Power supply output noise suppression

Procurement Notes

Verify the specific impedance value and current rating against the official manufacturer datasheet prior to ordering. Confirm that the 0805 package dimensions align with the target PCB footprint. Ensure the selected component meets the required AEC-Q200 qualification if the application involves automotive systems. Cross-reference the manufacturer part number to avoid confusion with similar series variants.

Selection Notes

Select this component when space-constrained designs require effective EMI suppression without significant voltage drop. The 300 mA current rating suits low-power signal lines rather than high-current power rails. Consider the 300 ohm impedance profile for targeting specific noise frequencies around 100 MHz. Evaluate the thermal performance within the specified operating temperature range to ensure long-term stability.

Part Context

This ferrite bead is part of the WE-CBF series, which focuses on small-footprint EMI solutions. The series offers various impedance and current combinations to suit different circuit requirements. Würth Elektronik manufactures these components using specialized ferrite materials optimized for broadband noise absorption in modern electronic devices.

Replacement Considerations

Consult the official Wurth Elektronik documentation for verified substitute part numbers within the same series or alternative manufacturers offering identical electrical specifications and package dimensions.