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Product Detailed Parameters
- Description：FERRITE BEAD 270 OHM 2220 1LN
- Series：WE-MPSB
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：-
- Number of Lines：1
- Impedance @ Frequency：270 Ohms @ 100 MHz
- Current Rating (Max)：4A
- DC Resistance (DCR) (Max)：20mOhm
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：2220 (5650 Metric)
- Mounting Type：Surface Mount
- Height (Max)：0.136" (3.45mm)
- Size / Dimension：0.220" L x 0.200" W (5.59mm x 5.08mm)
- Features：-
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Overview
The Würth Elektronik 74279224271 is a WE-MPSB series multi-layer power suppression ferrite bead designed for SMD/SMT mounting in a 2220 (5550 metric) package. It exhibits an impedance of 270 Ohms at a test frequency of 100 MHz with a tolerance of ±25%. The component supports a maximum DC current rating of 4 A and maintains a maximum DC resistance of 0.02 Ohms. It operates within a temperature range of -55°C to +125°C and holds AEC-Q200 qualification.
Feature Summary
- Multi-layer construction for effective EMI noise suppression in power circuits
- AEC-Q200 qualified for automotive reliability standards
- High current handling capability suitable for power line applications
Applications
- Automotive electronic systems
- Power supply input/output filtering
- General EMI suppression in high-current DC lines
Procurement Notes
Verify the specific suffix codes against official Wurth Elektronik documentation to confirm exact impedance, tolerance, and packaging specifications. Ensure that the selected variant matches the required thermal and electrical ratings for the target application environment. Cross-reference the manufacturer part number directly to avoid confusion with similar series components.
Selection Notes
Select this component when a robust, high-current EMI filter is required for automotive or industrial power applications. The 2220 package provides a balance between current capacity and footprint constraints. Confirm that the 4 A current rating and 0.02 Ohm DCR meet the circuit's power loss and thermal management requirements before finalizing the design.
Part Context
This component belongs to the WE-MPSB series, which specializes in multi-layer power suppression beads. These parts are engineered to handle significant DC currents while providing substantial impedance to high-frequency noise. The series is widely used in environments demanding high reliability and compliance with automotive quality standards.
Replacement Considerations
Consult official Wurth Elektronik substitution guides for verified alternatives. Do not assume compatibility based solely on package size or nominal impedance values without verifying current ratings and material specifications.
