COMMON MODE CHOKE
High Permeability
FINEMET® has higher permeability compare to standard Mn-Zn ferrite, which offers high impedance to suppress common mode choke noise.
Table 1 : Permeability of FINEMET® and ferrite
| Relative permeability μr | ||
|---|---|---|
| f=10kHz | f=100kHz | |
| Nanocrystalline soft magnetic material FINEMET® FT-3K50T |
50,000 | 31,000 |
| Mn-Zn ferrite μ 5000 material |
5,000 | 5,000 |
Figure 1 : Comparison data of common mode chokes
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