Power Inductor Toroid Ferrite Core Ring Magnets – 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 Power Inductor Toroid
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
| 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 | ||
| 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 | ||
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