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Product Detailed Parameters
- Description：FERRITE BEAD 120 OHM 0805 1LN
- Series：MFBM1V2012
- Mfr：Eaton - Electronics Division
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Power Line
- Number of Lines：1
- Impedance @ Frequency：120 Ohms @ 100 MHz
- Current Rating (Max)：3A
- DC Resistance (DCR) (Max)：50mOhm
- Ratings：-
- Operating Temperature：-40°C ~ 85°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 Eaton MFBM1V2012-121-R is a multilayer chip ferrite bead in an 0805 (2012 metric) surface-mount package. It provides an impedance of 120 Ohms at a test frequency of 100 MHz with a tolerance of ±25%. The component supports a maximum DC current of 3 A and has a maximum DC resistance of 50 mOhms. It operates within a temperature range of -40°C to +85°C.
Feature Summary
- Multilayer chip construction for compact circuit integration
- Shielded design to minimize electromagnetic interference
- High current handling capability suitable for power lines
Applications
- Power supply output filtering
- Digital signal line noise suppression
- Clock circuit EMI reduction
Procurement Notes
Verify the specific impedance value and current rating against the official Eaton datasheet before procurement. Confirm that the 0805 footprint matches the target PCB layout. Ensure the operating temperature range meets the environmental requirements of the final assembly. Cross-reference the manufacturer part number to avoid confusion with similar series components.
Selection Notes
Select this component when a 120 Ohm impedance at 100 MHz is required for noise suppression in space-constrained designs. The 3 A current rating makes it appropriate for moderate power applications where standard beads may saturate. Consider the low DC resistance to minimize voltage drop and power loss in the signal path.
Part Context
This component belongs to the MFBM1V series of multilayer ferrite beads from Eaton Electronics. The series offers various impedance values and current ratings across different package sizes, including 0402, 0603, and 1206. The MFBM1V2012 variant specifically targets applications requiring a balance between high current capacity and effective high-frequency noise attenuation in a standard 0805 footprint.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult Eaton's official cross-reference tools or contact technical support for verified alternatives.
