742792038

Overview

The Wurth Elektronik part number 742792038 is a Surface Mount Device (SMD) 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 240 Ohms at a test frequency of 250 MHz. It supports a maximum DC current of 200 mA and features a maximum DC resistance of 400 mOhms. The device operates within a temperature range of -55°C to +125°C and holds AEC-Q200 qualification for automotive reliability.

Feature Summary

• Provides effective electromagnetic interference suppression in compact surface mount form factors
• Engineered for high-reliability applications requiring automotive grade certification
• Designed for integration into signal lines with low DC resistance characteristics

Applications

• Automotive electronic systems requiring AEC-Q200 compliant components
• Signal line filtering in portable consumer electronics
• General purpose EMI suppression in data transmission circuits

Procurement Notes

Verify the specific impedance value against the official datasheet, as distributor listings may vary between 240 Ohms at 250 MHz and other ratings. Confirm the package type is strictly 0805 SMD. Ensure the supplier source is authorized to guarantee AEC-Q200 authenticity. Cross-reference the manufacturer part number directly with Wurth Elektronik documentation to avoid substitution errors.

Selection Notes

Select this component when space constraints require an 0805 footprint for EMI filtering. Choose this part if the application demands AEC-Q200 automotive qualification. Consider this model for signal lines where a 200 mA current rating is sufficient. Evaluate the 240 Ohm impedance at 250 MHz against the target noise spectrum requirements before finalizing the design.

Part Context

This component belongs to the WE-CBF series of SMD EMI suppression ferrite beads manufactured by Wurth Elektronik. The series is designed for surface mount assembly processes. These beads are intended to suppress electromagnetic interference in high-speed digital and analog circuits. The product line emphasizes compact sizing combined with robust performance characteristics for modern electronic assemblies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference material. Verify compatibility with any alternative components by matching the 0805 package dimensions, 240 Ohm impedance profile, and 200 mA current handling capabilities.