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Product Detailed Parameters
- Description：FERRITE BEAD 220 OHM 0402 1LN
- Series：WE-CBF HF
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：1
- Impedance @ Frequency：220 Ohms @ 100 MHz
- Current Rating (Max)：500mA
- DC Resistance (DCR) (Max)：380mOhm
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：0402 (1005 Metric)
- Mounting Type：Surface Mount
- Height (Max)：0.024" (0.60mm)
- Size / Dimension：0.039" L x 0.020" W (1.00mm x 0.50mm)
- Features：-
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Overview
The Würth Elektronik 742843122 is a surface-mount ferrite bead from the WE-CBF HF series, housed in a 0402 (1005 Metric) package. It provides an impedance of 220 ohms at 100 MHz and supports a DC current rating of 500 mA. The component features a low DC resistance of 0.38 ohms and a tolerance of ±25%. Designed for high-frequency noise suppression, it operates within standard surface-mount assembly processes.
Feature Summary
- High-frequency noise attenuation with specified impedance characteristics
- Compact surface-mount footprint for space-constrained designs
- Low DC resistance to minimize signal loss in power lines
Applications
- High-speed data line filtering
- Power supply input noise suppression
- General EMI/RFI mitigation in consumer electronics
Procurement Notes
Verify the complete manufacturer part number including any suffixes that may indicate specific tape-and-reel packaging or material variations. Confirm RoHS compliance status through official datasheets prior to integration. Ensure storage conditions align with manufacturer recommendations to maintain component integrity before soldering.
Selection Notes
Select this component when a compact form factor is required for high-frequency filtering applications. The 0402 package suits dense PCB layouts. Evaluate the 500 mA current rating against maximum circuit loads to prevent saturation. Consider the 220 ohm impedance profile for target noise frequencies around 100 MHz.
Part Context
This ferrite bead belongs to the WE-CBF HF series, designed for high-frequency performance. It complements other passive components in electromagnetic interference suppression strategies. The series offers various impedance values and packages to address diverse filtering requirements across industrial and consumer electronic products.
FAQ
What is the impedance value at 100 MHz?
The impedance is 220 ohms at 100 MHz.
Is this component shielded?
No, the WE-CBF HF series is unshielded.
