Common-Mode Choke core

Common-Mode Choke core

Common-Mode Choke, CMC is an important component of EMI filters, and its high magnetic permeability core allows it to effectively suppress common mode (CM) currents, and its leaked inductance can be used to some extent to suppress differential mode (DM) currents.


Advantages:
High initial magnetic permeability and high AL value
High effective insertion loss and good EMI filtering effect.
Good frequency characteristics, and the initial magnetic permeability µ 0 can be adjusted according to the insertion loss requirements of different frequency bands,
µ0 variable ratio range 20000-160000
The spraying method can effectively reduce the size of the magnetic core.


Application areas:
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 scenarios such as precision equipment protection, power grid EMI harmonic filtering, etc
Common mode filters in other single-phase or three-phase power lines and various power sources




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



Product number
CORE Size
Complete size
Effective area
Magnetic circuit length
weigh
inductance
Magnetic 
permeability
outside
diameter
inside
 diameter

high

outside
inside
high
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
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
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
14,3
8,5
0,06
3,6
1,5
18 
3,6
92000 
NO 141005
14
10
17,1
7,5
7,2
0,08
3,8
23 
4,5
92000 
NO 161006
16
10
18
8,3
8,2
0,14
4,1
43,1
11,1
103700 
NO 161006M
16
10
18
8,3
8,2
0,14
4,1
10,6
7,4
25500 
NO 161008
16
10
18 
8,3
10,2
0,18
4,1
5,3
50 
10 
90200 
NO 161306
16
12,5
17,8
10,7
8
0,08
4,5
2,5
15,1
5,3
68300 
NO 161306M
16
12,5
17,8
10,7
8
0,08
4,5
6,1
4,3
27600 
NO 201208
20
12,5
22,6
10,3
10,2
0,23
5,1
8,3
57,1
14,9
103000 
NO 201208M
20
12,5
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
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
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
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 



WPS拼图0.png

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.

  图片.png

Compare the performance curves of magnetic permeability and impedance with frequency (1KHz-120MHz) for different ribbon thicknesses under an initial magnetic permeability of 6w.

   图片.png

Compare the performance curves of magnetic permeability and impedance with frequency (1KHz-120MHz) for different tape thicknesses under an initial magnetic ribbon of 9w.

图片.png

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).

图片.png

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.

  图片.png

Compare the performance curves of magnetic permeability and impedance with frequency (1KHz-120MHz) for different ribbon thicknesses under an initial magnetic permeability of 6w.

   图片.png

Compare the performance curves of magnetic permeability and impedance with frequency (1KHz-120MHz) for different tape thicknesses under an initial magnetic ribbon of 9w.

图片.png

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).

图片.png

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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