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Product Detailed Parameters
- Description：FERRITE BEAD 1 KOHM 0402 1LN
- Series：WE-CBF
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR)
- Filter Type：Signal Line
- Number of Lines：1
- Impedance @ Frequency：1 kOhms @ 100 MHz
- Current Rating (Max)：50mA
- DC Resistance (DCR) (Max)：1.5Ohm
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：0402 (1005 Metric)
- Mounting Type：Surface Mount
- Height (Max)：0.022" (0.55mm)
- Size / Dimension：0.039" L x 0.020" W (1.00mm x 0.50mm)
- Features：-
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Overview
The Würth Elektronik 742792795 is a surface-mount EMI suppression ferrite bead from the WE-CBF series. It features a 0402 (1005 metric) package with dimensions of 1.0 mm length, 0.5 mm width, and 0.5 mm height. The component provides an impedance of 1000 Ohms at a test frequency of 100 MHz. It has a maximum DC current rating of 50 mA and a maximum DC resistance of 3 Ohms. The device operates within a temperature range of -55°C to +125°C.
Feature Summary
- Provides high impedance for effective electromagnetic interference suppression in compact designs
- Suitable for signal line filtering applications requiring low current handling
- Compliant with RoHS standards for environmental safety
Applications
- Signal line filtering in portable electronic devices
- EMI suppression on data lines in consumer electronics
- Noise reduction in compact circuit boards with limited space
Procurement Notes
Verify the specific suffix codes against official datasheets to confirm exact electrical tolerances and packaging configurations. Ensure compatibility with automated pick-and-place equipment due to the small 0402 footprint. Confirm that the 50 mA current rating meets the operational requirements of the target circuit to prevent saturation or excessive heating during use.
Selection Notes
Select this component when space constraints necessitate a 0402 footprint and high attenuation is required at 100 MHz. The low current rating makes it ideal for sensitive signal lines rather than power rails. Compare impedance characteristics against alternative ferrite beads to ensure adequate noise suppression without affecting signal integrity in high-speed digital circuits.
Part Context
This part belongs to the WE-CBF series of chip ferrite beads designed for general-purpose EMI suppression. The series offers various impedance values and packages to suit different application needs. The 742792795 specifically targets high-impedance requirements in miniature form factors, aligning with trends toward miniaturization in modern electronics manufacturing.
Replacement Considerations
Check manufacturer documentation for direct cross-references. Alternative parts must match the 0402 footprint, 1000 Ohm impedance at 100 MHz, and 50 mA current rating. Verify thermal performance and DC resistance equivalence to ensure identical circuit behavior during replacement.
FAQ
What is the maximum DC current rating for the 742792795?
The maximum DC current rating is 50 mA.
Does this component support automotive applications?
Official documentation does not list AEC-Q200 qualification for this specific part number.
