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Product Detailed Parameters
- Description：FERRITE BEAD 150 OHM 1806 4LN
- Series：WE-CBF
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：1
- Impedance @ Frequency：150 Ohms @ 100 MHz
- Current Rating (Max)：200mA
- DC Resistance (DCR) (Max)：500mOhm
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：1806 (4516 Metric)
- Mounting Type：Surface Mount
- Height (Max)：0.071" (1.80mm)
- Size / Dimension：0.177" L x 0.063" W (4.50mm x 1.60mm)
- Features：-
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Overview
The Würth Elektronik 74279242 is a surface-mount EMI suppression ferrite bead from the WE-CBF series, housed in an 1806 (4516 metric) package. It provides an impedance of 150 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 and operates within a temperature range of -55°C to +125°C. It is AEC-Q200 qualified for automotive applications.
Feature Summary
- Provides effective electromagnetic interference suppression through high impedance characteristics at target frequencies.
- Designed for surface-mount technology integration into compact electronic circuits.
- Qualified for automotive reliability standards ensuring durability in demanding environments.
Applications
- Automotive electronics signal line filtering
- General purpose EMI suppression in consumer devices
- Power supply input/output noise reduction
Procurement Notes
Verify the specific impedance value of 150 Ohms at 100 MHz against design requirements. Confirm the 200 mA current rating suffices for the application load. Ensure the 1806 package footprint matches the PCB layout. Check for AEC-Q200 certification if the deployment involves automotive systems.
Selection Notes
Select this component when a low-current signal line requires moderate attenuation at 100 MHz. The 500 mOhms DC resistance minimizes voltage drop across the component. The wide operating temperature range supports harsh environmental conditions. Consider the physical dimensions of the 1806 case for space-constrained designs.
Part Context
This part belongs to the WE-CBF series of SMD EMI suppression ferrite beads manufactured by Würth Elektronik. These components are engineered to attenuate high-frequency noise on signal lines while maintaining signal integrity. The series offers various impedance and current ratings to suit different circuit protection needs.
Replacement Considerations
Cross-reference with other 1806 ferrite beads offering similar 150 Ohm impedance at 100 MHz. Verify that substitute parts meet the same 200 mA current handling and 500 mOhms resistance specifications. Ensure compatibility with AEC-Q200 standards if automotive qualification is required.
