ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：FERRITE BEAD 40 OHM 0402 1LN
- Series：WE-CBF
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：1
- Impedance @ Frequency：40 Ohms @ 100 MHz
- Current Rating (Max)：300mA
- DC Resistance (DCR) (Max)：300mOhm
- 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：-
Download product information
Overview
The Würth Elektronik 74279270 is a surface-mount EMI suppression ferrite bead from the WE-CBF series, housed in a compact 0402 (1005 metric) package. It provides an impedance of 40 Ohms at 100 MHz for single-line signal protection. The component supports a maximum DC current of 300 mA with a maximum DC resistance of 300 mOhms. It operates within a temperature range of -55°C to +125°C and meets RoHS 3 compliance standards.
Feature Summary
- Provides effective electromagnetic interference suppression for high-speed digital signals
- Designed for space-constrained surface-mount applications
- Engineered for stable performance across wide industrial temperature ranges
Applications
- High-speed data line filtering
- Signal integrity enhancement in digital circuits
- EMI reduction in portable electronic devices
Procurement Notes
Verify the specific suffix and packaging configuration against the official datasheet before ordering. Confirm that the 0402 footprint matches the target PCB layout. Ensure the 300 mA current rating satisfies the circuit requirements. Check for any recent product change notices regarding material or manufacturing updates.
Selection Notes
Select this component when board real estate is limited and a low-profile solution is required. The 0402 size suits dense layouts where larger beads cannot fit. Consider the 300 mA limit for power delivery lines; use higher-rated variants if current demands exceed this threshold. Validate impedance characteristics against the specific noise frequency spectrum of the application.
Part Context
This part belongs to the WE-CBF family of SMD ferrite beads, designed for general-purpose EMI suppression. The series offers various impedances and current ratings in standardized footprints. The 74279270 specifically targets single-line applications requiring moderate attenuation in minimal space.
FAQ
Is the 74279270 suitable for automotive applications?
No, the 74279270 does not hold AEC-Q200 qualification. Automotive designs should utilize parts explicitly marked with AEC-Q200 certification.
What is the maximum DC current rating?
The maximum DC current rating is 300 mA. Exceeding this value may cause excessive heating or impedance degradation.
