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Ferrite Cores

Ferrite Cores
Ferrite Cores
Ferrite cores(Mn-zn)

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.

Applications
  • Power Transformer for SMPS
  • Inductor
  • PFC Filter & Choke coil
  • EMI Noise Filter etc.
Figure
Material Characteristics
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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