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Product Detailed Parameters
- Description：FERRITE BEAD 11 OHM 0805 1LN
- Series：WE-CBF
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：1
- Impedance @ Frequency：11 Ohms @ 100 MHz
- Current Rating (Max)：600mA
- DC Resistance (DCR) (Max)：150mOhm
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：0805 (2012 Metric)
- Mounting Type：Surface Mount
- Height (Max)：0.043" (1.10mm)
- Size / Dimension：0.079" L x 0.047" W (2.00mm x 1.20mm)
- Features：-
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Overview
The Würth Elektronik 7427920 is a surface-mount EMI suppression ferrite bead from the WE-CBF series, designed for high-speed signal lines. It features an impedance of 11 Ohms at 100 MHz and supports a maximum DC current of 600 mA with a maximum DC resistance of 150 mOhms. The component utilizes a shielded multilayer structure within an 0805 (2012 metric) package, measuring 2 mm in length, 1.25 mm in width, and 0.85 mm in height. It operates reliably between -55°C and +125°C and holds AEC-Q200 qualification.
Feature Summary
- Shielded multilayer construction minimizes electromagnetic interference coupling
- AEC-Q200 qualified for automotive electronic reliability standards
- Compact 0805 footprint suitable for dense surface-mount layouts
Applications
- High-speed digital signal line filtering
- Automotive electronics circuits
- Portable device power integrity management
Procurement Notes
Verify the specific impedance value against the official datasheet to ensure compatibility with target frequency requirements. Confirm that the 600 mA current rating meets the application's peak load demands without saturation. Check for RoHS compliance status if environmental regulations apply. Ensure the 0805 package dimensions fit the designated PCB land pattern accurately.
Selection Notes
Select this component when shielding is required to prevent magnetic field leakage in close-proximity designs. The low DC resistance helps maintain voltage integrity in power delivery paths. Consider the temperature range limits for harsh environment deployments. Evaluate the impedance profile across the noise spectrum rather than a single frequency point.
Part Context
This part belongs to the WE-CBF series of high-speed EMI suppression ferrite beads. The series offers various impedance values and current ratings in standard SMD packages. These components are engineered to suppress broadband noise while maintaining signal integrity in sensitive digital and analog circuits.
Replacement Considerations
Cross-reference with other 0805 shielded ferrite beads offering similar 11 Ohm impedance at 100 MHz. Verify equivalent current handling and DC resistance specifications before substitution. Ensure the replacement maintains AEC-Q200 certification if used in automotive applications.
