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Product Detailed Parameters
- Description：FERRITE BEAD 320 OHM 0805 1LN
- Series：WE-MPSA
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Power Line
- Number of Lines：1
- Impedance @ Frequency：320 Ohms @ 100 MHz
- Current Rating (Max)：2.5A
- DC Resistance (DCR) (Max)：50mOhm
- Ratings：AEC-Q200
- 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 part number 78279220321 is a WE-MPSA series multilayer power suppression ferrite bead designed for surface-mount applications. It features an 0805 (2012 metric) package with dimensions of 1.2 mm width and 0.9 mm height. The component provides an impedance of 320 Ohms at 100 MHz and supports a current rating of 2.5 A, with a maximum DC resistance of 50 mOhms. It operates within a temperature range of -55°C to +125°C and holds AEC-Q200 qualification.
Feature Summary
- Multilayer construction for compact surface-mount integration
- High impedance performance for effective EMI noise suppression
- Automotive-grade reliability certified under AEC-Q200 standards
Applications
- Power line filtering in automotive electronics
- EMI suppression in general electronic circuits
- Noise reduction in high-frequency signal lines
Procurement Notes
Verify the specific datasheet version and RoHS compliance status directly with the manufacturer or authorized distributor before procurement. Confirm that the AEC-Q200 qualification meets your project's automotive reliability requirements. Ensure the 0805 footprint matches your PCB layout constraints and that the 2.5 A current rating is sufficient for your application's operational load.
Selection Notes
Select this component when a compact surface-mount solution is required for power line EMI suppression. The 320 Ohm impedance at 100 MHz makes it suitable for high-frequency noise attenuation. Consider the 50 mOhm DC resistance to ensure minimal voltage drop in your circuit design. The wide operating temperature range ensures stability in demanding environments.
Part Context
This component belongs to the WE-MPSA series from Würth Elektronik, which specializes in multilayer power suppression beads. These components are engineered to provide efficient electromagnetic interference suppression in space-constrained designs. The series is characterized by its ability to handle significant current while maintaining high impedance at target frequencies.
Replacement Considerations
Publicly confirmed substitute part numbers for 78279220321 were not identified in the provided source material. Cross-referencing should be performed using key parameters: 0805 package, 320 Ohm @ 100 MHz, 2.5 A rating, and AEC-Q200 certification.
