Magnetic Solutions for Power System!
For SMPS and industrial high-frequency power transformers, we mainly use the manganese-zinc ferrite core made by adding manganese and zinc to iron oxide.
The manganese-zinc ferrite core is used to make high-frequency transformers, inductors, and noise filters for SMPS and industrial devices because of relatively small loss at high frequencies. This core is producedin diverse shapes and sizes.
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Characteristics | Symbol | Unit | Condition | Inductor & Power Transformer | EMI/RFI Filter | |||
---|---|---|---|---|---|---|---|---|
LP3 | LP9 | HP1 | HP2 | HP3 | ||||
Initial Permeability | ui | - | - | 2300±25% | 3300±25% | 5000±25% | 7000±25% | 10000±30% |
Maximum Usable Frequency | f | MHz | >1.5 | <1.2 | <1 | <0.6 | <0.25 | |
Relative loss factor | tanδ/ui | X106 | 100KHz | <4 | <4 | <15 | <7 | <7 |
Saturation flux density (1194A/m) |
Bs | mT | 25℃ | 500 | 520 | 420 | 400 | 400 |
100℃ | 390 | 410 | ||||||
Remanence | Br | mT | 130 | 920 | 110 | 100 | 90 | |
Coercivity | Hc | A/m | 13 | 9 | 10 | 6 | 5 | |
Power loss (f=100KHz), B=200mT) |
Pcv | KW/m3 | 25℃ | 650 | 350 | |||
80℃ | 450 | 300 | ||||||
100℃ | 410 | 320 | ||||||
Curie temperature | Tc | ℃ | >215 | >215 | >140 | >120 | >120 | |
Resistivity | ρ | Ω·m | 5 | 6 | 1 | 0.5 | 0.2 | |
Density | δ | kg/m3X103 | 4.8 | 4.9 | 4.85 | 4.9 | 4.95 | |
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