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Product Detailed Parameters
- Description：FERRITE BEAD 1.2 KOHM 0603 1LN
- Series：WE-CBF
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：1
- Impedance @ Frequency：1.2 kOhms @ 100 MHz
- Current Rating (Max)：50mA
- DC Resistance (DCR) (Max)：700mOhm
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：0603 (1608 Metric)
- Mounting Type：Surface Mount
- Height (Max)：0.039" (1.00mm)
- Size / Dimension：0.063" L x 0.032" W (1.60mm x 0.80mm)
- Features：-
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Overview
The Würth Elektronik 74279269 is a surface-mount device (SMD) ferrite bead from the WE-CBF series, designed for electromagnetic interference (EMI) suppression. It features a 0603 package with dimensions of 1.6 mm length, 0.8 mm width, and 0.8 mm height. The component provides an impedance of 1200 Ω at 100 MHz and supports a maximum DC current of 50 mA. Its maximum DC resistance is 700 mΩ, with a tolerance of ±25%. It operates within a temperature range of -55°C to +125°C.
Feature Summary
- Provides effective EMI noise suppression in compact SMD form factor
- Low DC resistance minimizes signal loss in power lines
- Automotive qualified under AEC-Q200 standards
Applications
- Power line filtering in automotive electronics
- Noise suppression in portable digital devices
- EMI mitigation in consumer electronics circuits
Procurement Notes
Verify the specific impedance value and current rating against the official datasheet before integration. Confirm RoHS compliance status and packaging options such as cut tape or reel availability directly with authorized distributors. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.
Selection Notes
Select this component when space constraints require a 0603 footprint for high-impedance noise filtering. Consider the 50 mA current limit for low-power signal or supply lines. The AEC-Q200 qualification makes it suitable for automotive applications requiring robust reliability under varying thermal conditions.
Part Context
This ferrite bead belongs to the WE-CBF series, which offers various impedance values and current ratings in standard SMD packages. The series is engineered for efficient PCB integration, providing reliable EMI suppression without significant parasitic effects. It complements other passive components in comprehensive EMC design strategies.
Replacement Considerations
Check for direct substitutes within the WE-CBF series offering similar impedance and current characteristics. Verify package compatibility and thermal performance if considering alternatives from other manufacturers.
