Toroidal current transformer nanocrystalline core
Toroidal current transformer nanocrystalline core
Nanocrystalline cores feature very high permeability over low frequency to high frequency up to 30Mhz. They are very suitable for common mode choke to be used as EMC filter to compress conducted common mode noise. Compared to traditional ferrite core, nanocrystalline core has a lot of advantages as high inductance, good filter effective, small size and volume, less turns of copper wire, lower power consumption and high efficiency.
Features
Material: Fe-based Nanocrystalline core
Saturation flux density induction: 1.25T
Permeability @ 10KHz: 80000
Permeability @ 100KHz: 20000
Curie temperature(℃): 560
Stacking factor: 0.78
Saturation magnetostriction(*10^-6): <2
Resistivity (μΩ.cm): 115
Ribbon thickness: 25μm
Core shapes: Troidal core
Applications
>> EMC Filter
>> Switched mode power supply
>> Computer power supply
>> Communication and network power supply
>> Laser and X-ray power supply
>> Welding equipment and Electrical plating power supply
>> Solar energy equipment and Wind power generator
>> Household electrical appliance
>> Uninterruptable power supply (UPS)
>> Frequency converter
>> Inducted heating equipment
>> high-speed railway power supplies
>> VFD Inverter Drive Motor Systems
Standard Cores
| Part No. | Core dimensions | Case dimensions | Effictive cross section | Mean path length | AL Nominal Value** | Equivalent to VAC part no. | |||||
| od | id | h | OD | ID | H | AFe | lFe | 10kHz | 100kHz | ||
| mm | mm | mm | mm | mm | mm | cm2 | cm | μH | μH | ||
| KMN986545 | 9.8 | 6.5 | 4.5 | 11.3 | 5 | 6.1 | 0.06 | 2.6 | 25.5 | 6.4 | W914 |
| KMN120805 | 12 | 8 | 4.5 | 14.5 | 6.3 | 6.9 | 0.08 | 3.1 | 28.0 | 6.8 | W902 |
| KMN151005 | 15 | 10 | 4.5 | 17.1 | 8.3 | 7.1 | 0.09 | 3.9 | 27.0 | 6.7 | W865 |
| KMN161006 | 16 | 10 | 6 | 17.9 | 8.1 | 8.1 | 0.14 | 4.1 | 43.0 | 10.1 | W403 |
| KMN161008 | 16 | 10 | 8 | 17.8 | 8.4 | 9.9 | 0.19 | 4.1 | 46.1 | 11.5 | - |
| KMN171206 | 17.5 | 12.6 | 6 | 19.2 | 10.9 | 8.1 | 0.11 | 4.7 | 30.0 | 6.9 | W515 |
| KMN191510 | 19 | 15 | 10 | 21.2 | 13.5 | 12.3 | 0.16 | 5.3 | 36.1 | 8.8 | W838 |
| KMN201208 | 20 | 12 | 8 | 21.7 | 10.8 | 9.9 | 0.25 | 5.0 | 55.2 | 13.6 | W409 |
| KMN201210 | 20 | 12 | 10 | 22.6 | 10.5 | 12.5 | 0.31 | 5.0 | 62.4 | 15.6 | - |
| KMN211308E * | 21.3 | 13.6 | 8 | 22 | 13 | 8.8 | 0.24 | 5.5 | 44.1 | 11.0 | - |
| KMN252010 | 25 | 20 | 10 | 28 | 17.2 | 13.2 | 0.20 | 7.1 | 28.4 | 7.3 | W523 |
| KMN251610 | 25 | 16 | 10 | 28 | 14.0 | 13.1 | 0.35 | 6.4 | 67.0 | 15.5 | W380 |
| KMN261610 | 26 | 16 | 10 | 28.3 | 14 | 12.8 | 0.39 | 6.6 | 57.1 | 14.3 | - |
| KMN302010 | 30 | 20 | 10 | 33.2 | 17.8 | 13.3 | 0.39 | 7.9 | 59.3 | 14.0 | W423 |
| KMN302015 | 30 | 20 | 15 | 33.6 | 17.8 | 17.8 | 0.59 | 7.9 | 88.0 | 20.0 | W414 |
| KMN322010 | 32 | 20 | 10 | 34.4 | 18.1 | 13 | 0.47 | 8.2 | 57.6 | 14.4 | - |
| KMN322015 | 32 | 20 | 15 | 34.6 | 17.9 | 18.2 | 0.70 | 8.2 | 86.4 | 21.6 | - |
| KMN322115Y | 32 | 21 | 15 | 35.5 | 18.5 | 19 | 0.64 | 8.3 | 77.7 | 19.4 | 3-Phase |
| KMN382415 | 37.8 | 24.2 | 15 | 40.8 | 21.6 | 18.3 | 0.80 | 9.7 | 82.1 | 20.5 | - |
| KMN402515 | 40 | 25 | 15 | 43.8 | 21.6 | 18.8 | 0.88 | 10.2 | 99.0 | 23.1 | W424 |
| KMN402520 | 40 | 25 | 20 | 45 | 21.5 | 24.7 | 1.17 | 10.2 | 115.2 | 28.8 | - |
| KMN403215 | 40 | 32 | 15 | 44.9 | 28.8 | 18.8 | 0.47 | 11.3 | 48.0 | 11.3 | W422 |
| KMN453015 | 45 | 30 | 15 | 48.3 | 26.4 | 18.2 | 0.88 | 11.8 | 87.6 | 20.0 | V102 |
| KMN462725 | 46 | 27 | 25 | 48.8 | 24.6 | 27.8 | 1.85 | 11.5 | 162.4 | 40.6 | - |
| KMN503220 | 50 | 32 | 20 | 53.8 | 28.5 | 24 | 1.40 | 12.9 | 109.6 | 27.4 | - |
| KMN504020 | 50 | 40 | 20 | 53.6 | 37.1 | 23 | 0.78 | 14.1 | 45.0 | 13.5 | W565 |
| KMN635025 | 63 | 50 | 25 | 69 | 46 | 29 | 1.27 | 17.7 | 59.0 | 17.5 | W517 |
| KMN644020 | 64 | 40 | 20 | 68.2 | 37 | 23.5 | 1.87 | 16.3 | 115.2 | 28.8 | - |
| KMN644025 | 64 | 40 | 25 | 67.4 | 37 | 29.2 | 2.34 | 16.3 | 144.0 | 36.0 | - |
| KMN805020 | 80 | 50 | 20 | 83.8 | 46.6 | 25.0 | 2.34 | 20.4 | 94.0 | 28.0 | V140 |
| KMN805025 | 80 | 50 | 25 | 84 | 47 | 29 | 2.93 | 20.4 | 144.0 | 36.0 | - |
| KMN906020 | 90 | 60 | 20 | 95.4 | 54.7 | 24.7 | 2.34 | 23.6 | 81.0 | 25.1 | W518 |
| KMN1008020 | 100 | 80 | 20 | 105 | 75 | 25 | 1.56 | 28.3 | 55.5 | 13.9 | - |
| KMN1027625 | 102 | 76 | 25 | 108.1 | 70.0 | 30.3 | 2.54 | 27.9 | 91.1 | 22.8 | W468 |
| KMN1108025 | 110 | 80 | 25 | 116.6 | 73.8 | 31.4 | 2.93 | 29.8 | 98.5 | 24.6 | - |
| KMN1309030 | 130 | 90 | 30 | 135.3 | 84.9 | 36.5 | 4.68 | 34.5 | 136.1 | 34.0 | - |
| KMN14010025 | 140 | 100 | 25 | 145 | 95 | 30 | 3.90 | 37.7 | 104 | 26 | - |
| KMN16013025 | 160 | 130 | 25 | 165 | 125 | 30 | 2.93 | 45.5 | 64.6 | 16.1 | - |
| KMN17012025 | 170 | 120 | 25 | 175 | 115 | 30 | 4.88 | 45.5 | 107.6 | 26.9 | - |
| KMN20016030 | 200 | 160 | 30 | 207 | 153 | 37 | 4.5 | 56.5 | 83.2 | 2.8 | - |
These cores are our standard products, we can also design and produce high performance cores according to customer’s requirements, including sizes, inductance and applications. We can help customers to select the best performance cores.
* Epoxy coated.
** AL tolerance -30%/+50%
KMN322115Y - Three phase common mode choke core.
1. Nanocrystalline cores for common mode chokes
- Very high permeability, suitable for EMI common mode chokes.
2. Amorphous and nanocrystalline c cores
- High saturation flux density, and low core loss.
- Nanocrystalline c cores are the updated material with ultra high performance.
3. Custom cores and magnetic components
- Oval shape nanocrystalline cores for VFD noise suppresor.
- Amorphous inductors for output DC choke or PFC choke.
- Nanocrystalline toroidal cores for common mode choke.
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