Ferrite Toroidal Cores for Transformer

/Ferrite Toroidal Cores for Transformer
  • Ferrite Toroidal Cores for Transformer
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    Ferrite Toroidal Cores for Transformer – Toroidal cores are used as power shapes in electric circuits such as inductors and transformers. They are an ideal material to use at low frequencies where large inductances are required. The cores offer the advantage of material permeability and have a uniform cross-sectional area. They do not have any gaps, so the leakage is very low. This is why the toroidal core windings are commonly used in current and instrument transformers.

    In modern technology, toroids are available as coated and uncoated to serve a range of applications. In this blog, we’re going to learn about coated and uncoated ferrite toroids, and how one stands out from the other. So, let’s look further to know.
    Benefits of using Ferrite Toroids

    Before we jump on to the two categories of Ferrite Toroids, it’s important to understand more information on what toroids are. Toroids are widely used as power shapes in electric circuits for the following benefits:

    Cooler operating temperature
    Lower magnetizing current
    Lesser noise
    Lower operating temperature
    Higher efficiency

    Applications of Toroidal Cores  Toroid MnZn O Core Ferrite
    Security system
    Power distribution equipment
    Telecommunication system
    Pulse transformer
    Energy meters for current sensing  Toroid MnZn Ferrite Core
    EMI and EMC
    Medical equipment

    Click to Download MnZn FERRITE CORE TOROIDAL TYPE SIZE PDF

    MnZn Power Ferrite Material Characteristics

    Characteristics \ Materal Unit F2B F2BD F2B1 F2A F3
    Initial Permeability μi 2500 ± 25% 2500 ± 25% 2300 ± 25% 2400 ± 25% 3000 ± 25%
    Amplitude Permeability μi / 3200min 3000min 3000min /
    Saturation magnetic flux density (H=1194A/M) 25 ℃ mT 500 510 510 510 470
    100 ℃ mT 390 390 390 390 370
    Remanence Br 25 ℃ mT 115 110 100 110 120
    100 ℃ mT 65 60 55 60 85
    Coercivity 25 ℃ A/m 15 12 14 13 12
    100 ℃ A/m 12 10 9 6.5 7.0
    Pcv Power Loss 25KHz 200mT sine wave 25 ℃ kW/m3 164 / / / 168
    100 ℃ kW/m3 154 / / / 154
    100KHz 200mT sine wave 25 ℃ kW/m3 / 700 600 600 /
    100 ℃ kW/m3 / 600 410 300 /
    120 ℃ kW/m3 / / 500 380 /
    Electrical resistivity ρ Ω-m 6.0 9 6.5 6.5 /
    Curie temperature Tc 220 230 215 215 190
    Density d kg/m3 4.8×103 4.8×103 4.8×103 4.8×103 4.8×103
    Notes:*applied field 1600A/m;**atf =500kHz and B30mT .The values in each column are typical ones , no including special requirements of customers ,it should be emphasized in contract if having special requirement.
    Characteristics \ Materal Unit F2 F1.B F2Z F2 F5D
    Initial Permeability μi 2000 ± 25% 1800 ± 25% 2300 ± 25% 2300 ± 25% 5500 ± 25%
    Amplitude Permeability μi ≥3000 ≥3000 ≥3000 ≥3000 /
    Saturation magnetic flux density (H=1194A/M) 25 ℃ mT 500 510 480 500 500
    100 ℃ mT 390 410 360 380 380
    Remanence Br 25 ℃ mT 120 170 130 130 95
    100 ℃ mT 85 / / / 55
    Coercivity 25 ℃ A/m 12 11 16 14 7.0
    100 ℃ A/m 7 / / / 5.8
    Pcv Power Loss 16KHz 150mT 25 ℃ kW/m3 52.8 / / / /
    100 ℃ kW/m3 43.2 20.2 16.8 14.4 /
    64KHz 200mT 25 ℃ kW/m3 / 700 600 600 /
    100KHz 200mT 100 ℃ kW/m3 / 600 410 300 /
    120 ℃ kW/m3 / / 500 380 /
    Electrical resistivity ρ Ω-m 6.0 9 6.5 6.5 /
    Curie temperature Tc 220 200 200 200 210
    Density d kg/m3 4.8×103 4.8×103 4.8×103 4.8×103 4.8×103
    Notes:The values in each column are typical ones, no including special requirements of customers, it should be emphasized in contract if having special requirement.
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