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Product Detailed Parameters
- Description：FERRITE BEAD 180 OHM 0805 1LN
- Series：WE-MPSB
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：-
- Number of Lines：1
- Impedance @ Frequency：180 Ohms @ 100 MHz
- Current Rating (Max)：4A
- DC Resistance (DCR) (Max)：37mOhm
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：0805 (2012 Metric)
- Mounting Type：Surface Mount
- Height (Max)：0.043" (1.10mm)
- Size / Dimension：0.079" L x 0.047" W (2.00mm x 1.20mm)
- Features：-
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Overview
The Würth Elektronik 74279220181 is a WE-MPSB series multilayer power suppression ferrite bead in an 0805 (2012 metric) SMD package. It provides 180 Ω impedance at 100 MHz with a DC current rating of 3.1 A and a maximum DC resistance of 25 mΩ. The component operates within a temperature range of -55°C to +125°C and holds AEC-Q200 qualification for automotive reliability.
Feature Summary
- Multilayer construction for high-power EMI suppression
- AEC-Q200 qualified for automotive applications
- High current handling capability
Applications
- Automotive electronics power line filtering
- General EMI suppression in compact circuits
- Power supply output filtering
Procurement Notes
Verify the specific datasheet version and RoHS compliance status directly with the manufacturer or authorized distributors before procurement. Confirm that the 0805 package dimensions and soldering profile requirements align with your assembly capabilities. Ensure the 3.1 A current rating meets the operational demands of your specific circuit design to prevent saturation or overheating during use.
Selection Notes
Select this component when space-constrained designs require high-current EMI filtering. The 0805 footprint offers a balance between size and power handling compared to smaller chip beads. Consider the 180 Ω impedance characteristic for target noise frequencies around 100 MHz. Verify thermal management needs given the low DC resistance and high current capacity.
Part Context
This part belongs to the WE-MPSB series, designed specifically for power line applications requiring significant current handling alongside effective noise suppression. Unlike standard signal line ferrites, these components are engineered to maintain performance under high DC bias conditions typical in power distribution networks.
Replacement Considerations
Check for direct substitutes within the WE-MPSB series with compatible impedance and current ratings. Verify package compatibility if considering alternative manufacturers' 0805 ferrite beads. Ensure any replacement maintains AEC-Q200 qualification if used in automotive contexts.
