Materials
Low-loss Mn-Zn ferrites for switching power supplies, covering 100kHz-class main power conversion. High-permeability grades are suitable for small-size, high-inductance designs, while high-Bs / high-Tc grades target high-temperature, high-current applications.
Conventional Power Materials
Low-loss Mn-Zn ferrites for switching power supplies, covering 100kHz-class main power conversion. High-permeability grades are suitable for small-size, high-inductance designs, while high-Bs / high-Tc grades target high-temperature, high-current applications.
Power loss Pcv: typical values (kW/m³) at 25/80/100/120℃ under B=200mT, f=100kHz sine wave.
| Grade | Initial permeability μiTYP. ±25% | Power loss PcvkW/m³ (25/80/100/120℃) | Saturation flux density BsmT | Remanence BrmT | Coercivity HcA/m | Curie temperature Tc℃ | Resistivity ρvΩ·m |
|---|---|---|---|---|---|---|---|
| 2300 ±25% | 600/430/410/500 | 510 | 390 | 14 | 215 | 6.5 | |
| 2400 ±25% | 600/350/310/400 | 510 | 400 | 13 | 215 | 6.5 | |
| 2500 ±25% | 600/330/280/360 | 530 | 410 | 13 | 230 | 5 | |
| 2200 ±25% | 700/380/350/420 | 540 | 450 | 14 | 255 | 5 | |
| 3300 ±25% | 350/280/290/350 | 530 | 420 | 12 | 220 | 6.5 | |
| 3300 ±25% | 290/265/290/330 | 530 | 430 | 12 | 220 | 7 | |
| 3500 ±25% | 260/280/310/350 | 530 | 410 | 10 | 230 | 7 |
High Permeability Materials
High-permeability ferrites with initial permeability of 5500–15000, for common-mode chokes, signal transformers and EMI filtering. The KW series retains high μi from several hundred kHz to 1MHz, suitable for wireless charging and high-frequency filtering.
| Grade | Initial permeability μiTYP. ±25% | Relative loss factor tanδ/μi×10⁻⁶ · 100kHz | Saturation flux density BsmT | Remanence BrmT | Coercivity HcA/m | Curie temperature Tc℃ | Resistivity ρvΩ·m |
|---|---|---|---|---|---|---|---|
| 5500 ±25% | 15 (100kHz) | 410 | 65 | 6 | >140 | 0.3 | |
| 7500 ±25% | 30 (100kHz) | 410 | 65 | 5 | >130 | 0.2 | |
| 10000 ±25% | 30 (100kHz) | 400 | 70 | 3 | >120 | 0.2 | |
| 12000 ±25% | 30 (100kHz) | 390 | 80 | 6 | >115 | 0.15 | |
| 15000 ±25% | 80 (100kHz) | 360 | 100 | 5 | >110 | 0.15 | |
| 5500 ±25% (3000 @1MHz) | <10 (100kHz) | 430 | 70 | 6 | >150 | 1 | |
| 7000 ±25% (3500 @800kHz) | <15 (100kHz) | 430 | 80 | 6 | >150 | 0.3 | |
| 10000 ±25% (9500 @200kHz) | <20 (100kHz) | 410 | 100 | 5 | >130 | 0.2 |
High-Frequency Power Materials
Low-loss ferrites for 100kHz–3MHz power conversion. Typical applications include fast-charging adapters, high-frequency power supplies, and power magnetic components for automotive and communication equipment.
| Grade | Initial permeability μiTYP. ±25% | Loss index | Frequency range | Saturation flux density BsmT | Curie temperature Tc℃ | Resistivity ρvΩ·m |
|---|---|---|---|---|---|---|
| 2000 ±25% | Pcv 200 (200kHz·125mT) | 100–200kHz | 450 | 200 | 20 | |
| 1400 ±25% | Pcv 130 (500kHz·50mT) | 100–500kHz | 470 | 230 | 30 | |
| 900 ±25% | Pcv 150 (1MHz·50mT) | 0.5–3MHz | 480 | 280 | 30 | |
| 900 ±25% | Pcv 90 (1MHz·50mT) | 1–3MHz | 530 | 280 | 30 |
High-Frequency Impedance Materials
High-impedance iron-deficient materials for 1–100MHz, with low relative loss factor and high normalized impedance Z. Typical applications include EMI suppression, signal-line filtering and anti-interference magnetic components.
| Grade | Initial permeability μiTYP. ±25% | Relative loss factor tanδ/μi×10⁻⁶ · 10kHz | Normalized impedance ZΩ/mm · 1/25/100MHz | Frequency rangef | Saturation flux density BsmT | Curie temperature Tc℃ | Resistivity ρvΩ·m |
|---|---|---|---|---|---|---|---|
| 1000 ±25% | tanδ/μi <45 (10kHz) | 4/40/120 (1/25/100MHz) | 1–100MHz | 430 | >180 | 0.3 | |
| 2000 ±25% | tanδ/μi <35 (10kHz) | 8/50/110 (1/25/100MHz) | 1–100MHz | 410 | >150 | 0.2 | |
| 3000 ±25% | tanδ/μi <30 (10kHz) | 9/50/110 (1/25/100MHz) | 1–100MHz | 390 | >130 | 0.2 | |
| 4000 ±25% | tanδ/μi <15 (10kHz) | 10/50/110 (1/25/100MHz) | 1–100MHz | 340 | >110 | 0.15 |
* Typical values; Bs / Br / Hc measured at H=1194 A/m; power loss Pcv measured under B=200mT, f=100kHz sine wave (high-frequency grades at their corresponding test frequency); high-permeability material loss is tanδ/μi (×10⁻⁶, 100kHz); MZ series tested on a T25-15-7.5 toroid.