Common-Mode Choke Core
Common-Mode Choke Core
The Common-Mode Choke (CMC) is a crucial component of EMI filters. Its high permeability core allows it to effectively suppress common-mode (CM) currents, while its leakage inductance can, to some extent, be used to suppress differential-mode (DM) currents.
Advantages
High initial permeability and high AL value
High effective insertion loss, providing excellent EMI filtering performance
Good frequency characteristics, with the ability to adjust initial permeability (µ0) to meet insertion loss requirements across different frequency bands. The (µ0) can vary in a range from 20,000 to 160,000
Coating method that effectively reduces the size of the magnetic core
Application
Switch Mode Power Supply (SMPS)
Solar Inverter
Frequency Converter
Welding Equipment
Wind Power Generator
Uninterruptible Power Supply (UPS)
Common-mode noise suppression is widely used in various EMC applications, such as precision equipment protection and power grid EMI harmonic filtering.
It is also used in common-mode filters for other single-phase or three-phase power lines and various power supplies.
Project | Nanocrystalline | Ferrite |
Saturated magnetic induction intensity Bs (T) | ≥1.20 | 0.4 |
Curie temperature (℃ ℃) | ≥560 | 170 |
Saturated magnetostriction coefficient (-10-6)（-10-6） | ＜2 | 4 |
Continuous operating temperature range (° C) | -55~130 | ＜80 |
Initial magnetic permeability μ 0 | 20000-160000 | 2000 |
Coercivity A/m | ＜1.3 | 30 |
High frequency loss P (20KHz, 0.2T) | 3.4 | 7.5 |
Productnumber | CORE Size | Complete Size | Effective area | Magnetic circuit length | weigh | Inductance | Magneticpermeability | |||||
outsidediameter | insidediameter | high | outside | inside | height | 10kHz | 100kHz | |||||
[mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [cm2] | cm | [g] | [µH] | [µH] | 10kHz | |
NO 070403 | 7,2 | 4,5 | 3 | 8,6 | 3,2 | 4 | 0,03 | 1,8 | 0,4 | 18 | 3,7 | 86600 |
NO 100704 | 9,8 | 6,5 | 4,5 | 11,5 | 4,6 | 6,3 | 0,06 | 2,6 | 1 | 25,6 | 7,2 | 93600 |
NO 100705 | 10 | 6,5 | 5 | 11,8 | 4,8 | 6,9 | 0,07 | 2,6 | 1,2 | 29 | 5,8 | |
NO 131005 | 12,5 | 10 | 5 | 14,3 | 8,5 | 7 | 0,05 | 3,5 | 10,1 | 3 | 60600 | |
NO 120804 | 12 | 8 | 4,5 | 14,5 | 6,2 | 6,8 | 0,07 | 3,1 | 1,5 | 28,1 | 4,9 | 104000 |
NO 151005 | 15 | 10 | 4,5 | 17,3 | 7,9 | 7 | 0,08 | 3,9 | 2,4 | 27,1 | 4,9 | 100300 |
NO 131005 | 13 | 10 | 5 | 14,3 | 8,5 | 7 | 0,06 | 3,6 | 1,5 | 18 | 3,6 | 92000 |
NO 141005 | 14 | 10 | 5 | 17,1 | 7,5 | 7,2 | 0,08 | 3,8 | 2 | 23 | 4,5 | 92000 |
NO 161006 | 16 | 10 | 6 | 18 | 8,3 | 8,2 | 0,14 | 4,1 | 4 | 43,1 | 11,1 | 103700 |
NO 161006M | 16 | 10 | 6 | 18 | 8,3 | 8,2 | 0,14 | 4,1 | 10,6 | 7,4 | 25500 | |
NO 161008 | 16 | 10 | 8 | 18 | 8,3 | 10,2 | 0,18 | 4,1 | 5,3 | 50 | 10 | 90200 |
NO 161306 | 16 | 12,5 | 6 | 17,8 | 10,7 | 8 | 0,08 | 4,5 | 2,5 | 15,1 | 5,3 | 68300 |
NO 161306M | 16 | 12,5 | 6 | 17,8 | 10,7 | 8 | 0,08 | 4,5 | 6,1 | 4,3 | 27600 | |
NO 201208 | 20 | 12,5 | 8 | 22,6 | 10,3 | 10,2 | 0,23 | 5,1 | 8,3 | 57,1 | 14,9 | 103000 |
NO 201208M | 20 | 12,5 | 8 | 22,6 | 10,3 | 10,2 | 0,23 | 5,1 | 14,1 | 10,3 | 25400 | |
NO 201210 | 20 | 12 | 10 | 22,9 | 10,1 | 12,6 | 0,3 | 5 | 10,9 | 68 | 13,5 | 90600 |
NO 252010 | 25 | 20 | 10 | 27,8 | 17,9 | 13,2 | 0,19 | 7,1 | 9,5 | 28,5 | 8,4 | 85500 |
NO 252010 | 25 | 20 | 10 | 27,8 | 17,9 | 13,2 | 0,19 | 7,1 | 22,6 | 8 | 67800 | |
NO 252010M | 25 | 20 | 10 | 27,8 | 17,9 | 13,2 | 0,19 | 7,1 | 9,1 | 6,5 | 27300 | |
NO 251610 | 25 | 16 | 10 | 27,9 | 13,6 | 12,8 | 0,34 | 6,4 | 15,6 | 67,1 | 17,5 | 101800 |
NO 302010 | 30 | 20 | 10 | 32,3 | 17,8 | 12,3 | 0,38 | 7,9 | 21,2 | 56,1 | 14,8 | 93500 |
NO 302010 | 30 | 20 | 10 | 32,3 | 17,8 | 12,3 | 0,38 | 7,9 | 66,1 | 15,9 | 110100 | |
NO 302010M | 30 | 20 | 10 | 32,3 | 17,8 | 12,3 | 0,38 | 7,9 | 15,6 | 11,2 | 26000 | |
NO 322010 | 32 | 20 | 10 | 34,7 | 17,1 | 13,2 | 0,45 | 8,2 | 26,5 | 63 | 12,5 | 91000 |
NO 302015 | 30 | 20 | 15 | 33,9 | 17,5 | 18,1 | 0,56 | 7,9 | 31,8 | 88,1 | 22,9 | 97800 |
NO 302015M | 30 | 20 | 15 | 33,9 | 17,5 | 18,1 | 0,56 | 7,9 | 27 | 16,3 | 30000 | |
NO 302015M | 30 | 20 | 15 | 33,9 | 17,5 | 18,1 | 0,56 | 7,9 | 15,8 | 14,1 | 17500 | |
NO 322115 | 32,7 | 21,2 | 15 | 35,7 | 18,4 | 17,9 | 0,65 | 8,5 | 39,4 | 87 | 17,3 | 90600 |
NO 402510 | 40 | 25 | 10 | 43,5 | 21,7 | 13,5 | 0,56 | 10,2 | 41,3 | 63 | 12,5 | 91000 |
NO 402515 | 40 | 25 | 15 | 43,9 | 21,7 | 18,9 | 0,84 | 10,2 | 62 | 101,5 | 26,5 | 97700 |
NO 402515M | 40 | 25 | 15 | 43,9 | 21,7 | 18,9 | 0,84 | 10,2 | 25,1 | 19,8 | 24200 | |
NO 403215 | 40 | 32 | 15 | 42,3 | 29,1 | 17,8 | 0,45 | 11,3 | 36,6 | 32,6 | 11,5 | 65200 |
NO 403215M | 40 | 32 | 15 | 42,3 | 29,1 | 17,8 | 0,45 | 11,3 | 13,1 | 9,3 | 22600 | |
NO 403215 | 40 | 32 | 15 | 44,9 | 28,4 | 19 | 0,45 | 11,3 | 48,1 | 11,3 | 96200 | |
NO 403215M | 40 | 32 | 15 | 44,9 | 28,4 | 19 | 0,45 | 11,3 | 13 | 8,4 | 26000 | |
NO 403215M | 40 | 32 | 15 | 44,9 | 28,4 | 19 | 0,45 | 11,3 | 10,6 | 9 | 21200 | |
NO 453015 | 45 | 30 | 15 | 49,1 | 26,3 | 18,2 | 0,84 | 11,8 | 71,5 | 81 | 16,2 | 90000 |
NO 503215 | 50 | 32 | 15 | 53,7 | 28,7 | 18,7 | 1,01 | 12,9 | 93,9 | 89 | 17,8 | 90000 |
NO 503220 | 50 | 32 | 20 | 53,9 | 28,2 | 24,1 | 1,35 | 12,9 | 125,1 | 119 | 23,7 | 90300 |
NO 504020 | 50 | 40 | 20 | 52,3 | 37,1 | 22,8 | 0,75 | 14,1 | 76,3 | 43,1 | 15,3 | 64600 |
NO 504020M | 50 | 40 | 20 | 52,3 | 37,1 | 22,8 | 0,75 | 14,1 | 10,1 | 11,2 | 15000 | |
NO 504020 | 50 | 40 | 20 | 52,8 | 36,9 | 23,3 | 0,75 | 14,1 | 45,1 | 15,3 | 67600 | |
NO 504020M | 50 | 40 | 20 | 52,8 | 36,9 | 23,3 | 0,75 | 14,1 | 18,1 | 10,1 | 27100 | |
NO 504020M | 50 | 40 | 20 | 52,8 | 36,9 | 23,3 | 0,75 | 14,1 | 11,7 | 10,1 | 17500 | |
NO 504025 | 50 | 40 | 25 | 53,8 | 36,8 | 28,2 | 0,94 | 14,1 | 95,4 | 75 | 15 | 90000 |
NO 644020 | 64 | 40 | 20 | 69,1 | 35,8 | 25,5 | 1,8 | 16,3 | 211,6 | 125 | 25 | 90200 |
NO 655025 | 65 | 50 | 25 | 68,7 | 46,3 | 29,2 | 1,41 | 18,1 | 182,8 | 88 | 17,6 | 90000 |
NO 805020 | 80 | 50 | 20 | 84,5 | 45,5 | 25,5 | 2,25 | 20,4 | 330,6 | 94,1 | 31,7 | 67900 |
NO 805020M | 80 | 50 | 20 | 84,5 | 45,5 | 25,5 | 2,25 | 20,4 | 35,1 | 26,5 | 25300 | |
NO 806030 | 80 | 60 | 30 | 85,2 | 54,8 | 37,2 | 2,25 | 22 | 356,1 | 116 | 23,2 | 90200 |
NO 906020 | 90 | 60 | 20 | 94,3 | 54,9 | 24,3 | 2,25 | 23,6 | 381,5 | 108 | 22 | 90000 |
NO 1008020M | 100 | 80 | 20 | 104 | 75 | 23 | 1,46 | 28,3 | 303 | 17,4 | 11,2 | 26100 |
NO 1008020M | 100 | 80 | 20 | 104 | 75 | 23 | 1,46 | 28,3 | 11,3 | 11,2 | 16900 | |
NO 1207030 | 120 | 70 | 30 | 125,9 | 65,3 | 36,2 | 5,63 | 29,8 | 1208 | 214 | 43 | 90300 |
NO 1259025 | 125 | 90 | 25 | 129,5 | 85,4 | 30 | 3,28 | 33,8 | 797,5 | 110 | 22 | 90000 |
NO 13010025 | 130 | 100 | 25 | 134,5 | 95 | 28,5 | 2,81 | 36,1 | 731,2 | 50,1 | 17,6 | 51200 |
NO 13010025M | 130 | 100 | 25 | 134,5 | 95 | 28,5 | 2,81 | 36,1 | 17 | 14,9 | 17400 | |
NO 13010025M | 130 | 100 | 25 | 134,5 | 95 | 28,5 | 2,81 | 36,1 | 25,5 | 18,3 | 26100 | |
NO 16013025M | 160 | 130 | 25 | 165 | 125 | 28,5 | 2,81 | 45,4 | 922 | 20,1 | 14,5 | 25900 |
NO 16013025M | 160 | 130 | 25 | 165 | 125 | 28,5 | 2,81 | 45,4 | 13,1 | 13 | 16900 | |
NO 16013030 | 160 | 130 | 30 | 165 | 125 | 33,5 | 3,38 | 45,5 | 1106,4 | 84 | 16,8 | 90200 |
NO 22019030 | 220 | 190 | 30 | 228 | 184 | 36 | 3,38 | 64,4 | 1564,2 | 59 | 11,8 | 89500 |
Taking 20/30-15 as an example, different tape thicknesses (14-16 μ m, 16-18 μ m, 18-20 μ m) were used to compare the performance curves of magnetic permeability and impedance with frequency (1KHz-120MHz) for different tape thicknesses under an initial magnetic permeability of 3w.
Compare the performance curves of magnetic permeability and impedance with frequency (1KHz-120MHz) for different ribbon thicknesses under an initial magnetic permeability of 6w.
Compare the performance curves of magnetic permeability and impedance with frequency (1KHz-120MHz) for different tape thicknesses under an initial magnetic ribbon of 9w.
Using the same ribbon thickness (16-18 μ m) and different magnetic permeability (3w, 6w, 9w), compare the performance curves of magnetic permeability and impedance with frequency (1KHz-120MHz).
The magnetic permeability gradually decreases with the increase of testing frequency, and the impedance shows a phenomenon of first increasing and then decreasing with the increase of frequency.
Nanocrystalline materials have high saturation magnetic induction intensity, high magnetic permeability, low loss, low coercivity, low hysteresis coefficient, and excellent temperature stability. And adjust the magnetic properties of the material through different magnetic field processing methods to meet the performance requirements of different customers, such as low remanence and high rectangular ratio.
Nanocrystalline ribbons can replace amorphous ribbons, perovskite alloys, and ferrites, promoting the trend of small, lightweight, and efficient development of meta devices in high-frequency power electronics and electronic information fields.
Production Steps
Taking 20/30-15 as an example, different tape thicknesses (14-16 μ m, 16-18 μ m, 18-20 μ m) were used to compare the performance curves of magnetic permeability and impedance with frequency (1KHz-120MHz) for different tape thicknesses under an initial magnetic permeability of 3w.
Compare the performance curves of magnetic permeability and impedance with frequency (1KHz-120MHz) for different ribbon thicknesses under an initial magnetic permeability of 6w.
Compare the performance curves of magnetic permeability and impedance with frequency (1KHz-120MHz) for different tape thicknesses under an initial magnetic ribbon of 9w.
Using the same ribbon thickness (16-18 μ m) and different magnetic permeability (3w, 6w, 9w), compare the performance curves of magnetic permeability and impedance with frequency (1KHz-120MHz).
The magnetic permeability gradually decreases with the increase of testing frequency, and the impedance shows a phenomenon of first increasing and then decreasing with the increase of frequency.
Nanocrystalline materials have high saturation magnetic induction intensity, high magnetic permeability, low loss, low coercivity, low hysteresis coefficient, and excellent temperature stability. And adjust the magnetic properties of the material through different magnetic field processing methods to meet the performance requirements of different customers, such as low remanence and high rectangular ratio.
Nanocrystalline ribbons can replace amorphous ribbons, perovskite alloys, and ferrites, promoting the trend of small, lightweight, and efficient development of meta devices in high-frequency power electronics and electronic information fields.
Insulation Systems
- Cobalt-iron alloys: based on magnesium oxide (MgO)
- Nickel-iron alloys: based on zirconium oxide (ZrO) = HITCOAT, developed and patented by VAC
Gluing Technologies developed by VAC
- Standard adhesive K-01 for maximum package density
- High temperature adhesive HT-01 for applications up to 200 °C
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