Ferrite is a ceramic-based non-metallic magnetic material composed of iron oxide combined with metal oxides such as manganese and zinc. It features high permeability, high electrical resistivity, and low high-frequency magnetic loss. Ferrites can be classified into soft magnetic and hard magnetic types. Available in various shapes including ring, E-shape, and rod forms, they are widely used in electronic devices, automotive components, communication base stations, and medical equipment, serving as key materials for core components such as transformers, inductors, and filters.
| Grade | Residual Induction | Coercive Force | Intrinsic Coercive Force | Max Energy Product | ||||
| Br | Hcb | Hcj | (BH)max | |||||
| T | kGs | kA/m | kOe | kA/m | kOe | kJ/m3 | MGOe | |
| Y10T C1 | 0.20-0.23 | 2.00-2.35 | 125-160 | 1.57-2.01 | 210-280 | 2.64-3.52 | 6.5-9.5 | 0.8-1.2 |
| Y20 | 0.30-0.38 | 3.20-3.80 | 135-190 | 1.70-2.38 | 140-195 | 1.76-2.45 | 18.0-22.0 | 2.3-2.8 |
| Y22H | 0.31-0.36 | 3.10-3.60 | 220-250 | 2.77-3.14 | 280-320 | 3.52-4.02 | 20.0-24.0 | 2.5-3.0 |
| Y23 | 0.32-0.37 | 3.20-3.70 | 170-190 | 2.14-2.38 | 190-230 | 2.39-2.89 | 20.0-25.5 | 2.5-3.2 |
| Y25 | 0.36-0.40 | 3.60-4.00 | 135-170 | 1.70-2.14 | 140-200 | 1.76-2.51 | 22.5-28.0 | 2.8-3.5 |
| Y26H | 0.36-0.39 | 3.60-3.90 | 220-250 | 2.77-3.14 | 225-255 | 2.83-3.21 | 23.0-28.0 | 2.9-3.5 |
| Y27H | 0.37-0.40 | 3.70-4.00 | 205-250 | 2.58-3.14 | 210-255 | 2.64-3.21 | 25.0-29.0 | 3.1-3.7 |
| Y30 C5 | 0.37-0.40 | 3.70-4.00 | 175-210 | 2.20-2.64 | 180-220 | 2.26-2.77 | 26.0-30.0 | 3.3-3.8 |
| Y30BH C8 | 0.38-0.39 | 3.80-3.90 | 223-235 | 2.80-2.95 | 231-245 | 2.90-3.08 | 27.0-30.0 | 3.4-3.7 |
| Y30-1 | 0.30-0.40 | 3.80-4.00 | 230-275 | 2.89-3.46 | 235-290 | 2.95-3.65 | 27.0-32.0 | 3.4-4.0 |
| Y30-2 | 0.3850.41 | 3.95-4.15 | 275-300 | 3.46-3.77 | 310-335 | 3.90-4.21 | 28.5-32.5 | 3.5-4.0 |
| Y32 | 0.40-0.42 | 4.00-4.20 | 160-190 | 2.01-2.38 | 165-195 | 2.07-2.45 | 30.0-33.5 | 3.8-4.2 |
| Y33 | 0.41-0.43 | 4.10-4.30 | 220-250 | 2.77-3.14 | 225-255 | 2.83-3.21 | 31.5-35.0 | 4.0-4.4 |
| Y35 C11 | 0.40-0.41 | 4.00-4.10 | 175-195 | 2.20-2.45 | 180-200 | 2.26-2.51 | 30.0-32.0 | 3.8-4.0 |
Due to its low cost, high temperature resistance, and excellent corrosion resistance, it is widely used in DC motors, magnetic separation systems, automotive sensors, speakers, and other applications, making it one of the most widely used magnetic materials today.
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