Document 326-1
Common Mode Line Chokes - CMT Series
Coilcraft’s CMT toroid style common mode chokes are
designed to provide the highest common mode imped-
ance over the widest frequency range. These parts are
ideal for any application requiring a high DC current bias
and are well suited for use in switch-mode power supplies.
Common mode chokes are most effective in filtering
supply and return conductors with in-phase signals of
0.118
3,00
equal amplitude. Differential mode inductors are available
for filtering out-of-phase or uneven amplitude signals.
CMTs feature inductance values up to 125 mH and
Irms
ratings as high as 15 Amps.
• 1250 Vrms isolation between windings
• Industry standard footprint.
• IEC, UL, and VDE compliant.
Recommended
Board Layout
4
1
4
Schematic
1
H max
2
CMT-X-X.X-XL
CCI XXXX
CC–3X
3
X
2
3
Weights:
1
2
2
3
L max
0.120/0.180
3,05/4,57
W max
CMT1: 13.3 – 25.5 g;
CMT2: 20.7– 41.7 g;
CMT3: 42.5 – 74.9 g;
CMT4: 115 – 117 g
Terminations:
Tin-silver over copper
Y
CMT-1 Series
Part
number
CMT1-5.0-1L
CMT1-8.0-1L
CMT1-15.0-1L
CMT1-2.5-2L
CMT1-4.0-2L
CMT1-7.5-2L
CMT1-1.3-4L
CMT1-2.1-4L
CMT1-3.7-4L
CMT1-1.0-6L
CMT1-1.7-6L
CMT1-3.0-6L
CMT1-.6-9L
CMT1-1.1-9L
CMT1-1.9-9L
CMT1-.5-12L
CMT1-.8-12L
CMT1-1.4-12L
CMT1-.3-15L
CMT1-.6-15L
CMT1-1.1-15L
1.
2.
3.
4.
L min
1
(mH)
5.0
8.0
15.0
2.5
4.0
7.5
1.3
2.1
3.7
1.0
1.7
3.0
0.6
1.1
1.9
0.5
0.8
1.4
0.3
0.6
1.1
Irms
(A)
1.0
1.0
1.0
2.0
2.0
2.0
4.0
4.0
4.0
6.0
6.0
6.0
9.0
9.0
9.0
12.0
12.0
12.0
15.0
15.0
15.0
Leakage
inductance
2
DCR max
max (µH)
(Ohms)
80
0.207
125
0.270
233
0.430
42
0.090
70
0.095
74
0.108
20
0.029
36
0.040
40
0.036
19
0.022
34
0.032
35
0.027
11
0.012
12
0.013
20
0.017
9
0.008
9
0.008
16
0.011
6
0.005
6.5
0.006
13.7
0.008
H
max
1.100/27,9
1.100/27,9
1.155/29,4
1.100/27,9
1.050/26,7
1.155/29,4
1.100/27,9
1.100/27,9
1.125/28.6
1.100/27,9
1.155/29,4
1.200/30,5
1.200/30,5
1.300/33.0
1.300/33.0
1.200/30,5
1.200/30,5
1.300/33.0
1.300/33.0
1.250/31.8
1.250/31.8
L
max
1.210/30,7
1.210/30,7
1.300/33,0
1.210/30,7
1.210/30,7
1.300/33,0
1.210/30,7
1.210/30,7
1.300/33,0
1.210/30,7
1.300/33,0
1.210/30,7
1.210/30,7
1.210/30,7
1.400/35,6
1.210/30,7
1.210/30,7
1.210/30,7
1.210/30,7
1.210/30,7
1.210/30,7
Lead
W
X
Y
diameter
max
±0.01/0,25 ±0.01/0,25
nom
0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37
0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37
0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37
0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37
0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37
0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37
0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37
0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37
0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37
0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37
0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37
0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37
0.625/15,9 0.80/20,3 0.40/10,2 0.042/1,07
0.625/15,9 0.80/20,3 0.40/10,2 0.042/1,07
0.625/15,9 0.80/20,3 0.40/10,2 0.042/1,07
0.650/16,5 0.80/20,3 0.40/10,2 0.048/1,22
0.650/16,5 0.80/20,3 0.40/10,2 0.048/1,22
0.650/16,5 0.80/20,3 0.40/10,2 0.048/1,22
0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37
0.650/16,5 0.80/20,3 0.40/10,2 0.054/1,37
0.700/17,8 0.80/20,3 0.40/10,2 0.054/1,37
PC board
hole
diameter
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.071/1,80
0.071/1,80
0.071/1,80
0.081/2,06
0.081/2,06
0.081/2,06
0.091/2,32
0.091/2,32
0.091/2,32
Inductance is per winding, tested at 15.75 kHz, 0 Adc.
Leakage inductance is measured from pin 1 to pin 4 with pins 2 and 3 shorted.
Operating temperature range –40°C to +85°C.
Electrical specifications at 25°C.
Specifications subject to change without notice.
Please check our website for latest information.
Document 326-1
Revised 08/20/08
© Coilcraft, Inc. 2009
Document 326-2
Common Mode Line Chokes – CMT Series
0.118
3,00
Schematic
1
4
Recommended
Board Layout
1
4
H max
2
CMT-X-X.X-XL
CCI XXXX
CC–3X
3
X
2
3
Weights:
1
2
2
3
L max
0.120/0.180
3,05/4,57
W max
CMT1: 13.3 – 25.5 g;
CMT2: 20.7– 41.7 g;
CMT3: 42.5 – 74.9 g;
CMT4: 115 – 117 g
Terminations:
Tin-silver over copper
Y
CMT-2 Series
Part
number
CMT2-7.5-1L
CMT2-13-1L
CMT2-3.8-2L
CMT2-6.5-2L
CMT2-1.9-4L
CMT2-3.3-4L
CMT2-1.5-6L
CMT2-2.6-6L
CMT2-.9-9L
CMT2-1.5-9L
CMT2-.7-12L
CMT2-1.2-12L
CMT2-.5-15L
CMT2-.8-15L
1.
2.
3.
4.
L min
1
(mH)
7.5
13.0
3.8
6.5
1.9
3.3
1.5
2.6
0.9
1.5
0.7
1.2
0.5
0.8
Irms
(A)
1.0
1.0
2.0
2.0
4.0
4.0
6.0
6.0
9.0
9.0
12.0
12.0
15.0
15.0
Leakage
inductance
2
DCR max
max (µH)
(Ohms)
90
0.270
190
0.415
48
0.106
98
0.145
26
0.038
45
0.055
21
0.029
41
0.040
17
0.014
15
0.013
14
0.011
14
0.011
8.7
0.007
10
0.007
H
max
1.100/27,9
1.300/33,0
1.100/27,9
1.300/33,0
1.100/27,9
1.300/33,0
1.100/27,9
1.400/35,6
1.200/30,5
1.250/31,8
1.200/30,5
1.200/30,5
1.300/33.0
1.200/30,5
L
max
1.310/33,3
1.310/33,3
1.310/33,3
1.310/33,3
1.310/33,3
1.310/33,3
1.310/33,3
1.400/35,6
1.310/33,3
1.250/31,8
1.250/31,8
1.250/31,8
1.300/33,0
1.250/31,8
Lead
W
X
Y
diameter
max
±0.01/0,25 ±0.01/0,25
nom
0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37
0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37
0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37
0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37
0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37
0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37
0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37
0.900/22,9 0.90/22,9 0.60/15,2 0.054/1,37
0.825/21,0 0.90/22,9 0.60/15,2 0.042/1,07
0.825/21,0 0.90/22,9 0.60/15,2 0.042/1,07
0.825/21,0 0.90/22,9 0.60/15,2 0.048/1,22
0.825/21,0 0.90/22,9 0.60/15,2 0.048/1,22
0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37
0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37
PC board
hole
diameter
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.071/1,80
0.071/1,80
0.081/2,06
0.081/2,06
0.091/2,32
0.091/2,32
Inductance is per winding, tested at 15.75 kHz, 0 Adc.
Leakage inductance is measured from pin 1 to pin 4 with pins 2 and 3 shorted.
Operating temperature range –40°C to +85°C.
Electrical specifications at 25°C..
CMT-3 Series
Part
number
CMT3-32-1L
CMT3-56-1L
CMT3-16-2L
CMT3-28-2L
CMT3-8-4L
CMT3-14-4L
CMT3-6.6-6L
CMT3-11.5-6L
CMT3-4-9L
CMT3-7-9L
CMT3-3-12L
CMT3-5.2-12L
CMT3-2.5-15L
CMT3-4.4-15L
1.
2.
3.
4.
L min
1
(mH)
32.0
56.0
16.0
28.0
8.0
14.0
6.6
11.5
4.0
7.0
3.0
5.2
2.5
4.4
Irms
(A)
1.0
1.0
2.0
2.0
4.0
4.0
6.0
6.0
9.0
9.0
12.0
12.0
15.0
15.0
Leakage
inductance
2
DCR max
max (µH)
(Ohms)
485
0.650
780
0.900
210
0.240
410
0.330
57.5
0.061
180
0.120
49
0.048
140
0.088
37
0.026
104
0.045
40
0.022
47
0.025
42
0.019
48
0.017
H
max
1.400/35,6
1.650/41,9
1.400/35,6
1.650/41,9
1.350/34,3
1.700/43,2
1.400/35,6
1.700/43,2
1.400/35,6
1.760/44,7
1.700/43,2
1.700/43,2
1.750/44,5
1.700/43,2
L
max
1.650/41,9
1.650/41,9
1.650/41,9
1.650/41,9
1.650/41,9
1.650/41,9
1.600/40,6
1.650/41,9
1.450/36,8
1.760/44,7
1.700/43,2
1.700/43,2
1.750/44,5
1.700/43,2
Lead
PC board
W
X
Y
diameter
hole
max
±0.01/0,25 ±0.01/0,25
nom
diameter
0.925/23,5 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32
0.925/23,5 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32
0.925/23,5 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32
0.925/23,5 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32
0.925/23,5 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32
0.950/24,1 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32
0.925/23,5 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32
0.925/23,5 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32
0.925/23,5 1.20/30,5 0.70/17,8 0.042/1,07 0.071/1,80
0.975/24,8 1.20/30,5 0.70/17,8 0.042/1,07 0.071/1,80
0.950/24,1 1.20/30,5 0.70/17,8 0.048/1,22 0.081/2,06
1.000/25,4 1.20/30,5 0.70/17,8 0.048/1,22 0.081/2,06
1.000/25,4 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32
1.000/25,4 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32
Inductance is per winding, tested at 15.75 kHz, 0 Adc.
Leakage inductance is measured from pin 1 to pin 4 with pins 2 and 3 shorted.
Operating temperature range –40°C to +85°C.
Electrical specifications at 25°C.
Specifications subject to change without notice.
Please check our website for latest information.
Document 326-2
Revised 08/20/08
© Coilcraft, Inc. 2009
Document 326-3
Common Mode Line Chokes – CMT Series
0.118
3,00
Schematic
1
4
Recommended
Board Layout
1
4
H max
2
CMT-X-X.X-XL
CCI XXXX
CC–3X
3
X
1
2
2
3
L max
0.120/0.180
3,05/4,57
W max
CMT1: 13.3 – 25.5 g;
CMT2: 20.7– 41.7 g;
CMT3: 42.5 – 74.9 g;
CMT4: 115 – 117 g
Terminations:
Tin-silver over copper
Weights:
2
3
Y
CMT-4 Series
Part
L min
1
number
(mH)
CMT4-72-1L
72.0
CMT4-125-1L 125.0
CMT4-36-2L
36.0
CMT4-62-2L
62.0
CMT4-19-4L
19.0
CMT4-32-4L
32.0
CMT4-15-6L
15.0
CMT4-26-6L
26.0
CMT4-10-9L
10.0
CMT4-17-9L
17.0
CMT4-7.5-12L
7.5
CMT4-13-12L
13.0
CMT4-6-15L
6.0
CMT4-10-15L
10.0
1.
2.
3.
4.
Irms
(A)
1.0
1.0
2.0
2.0
4.0
4.0
6.0
6.0
9.0
9.0
12.0
12.0
15.0
15.0
Leakage
inductance
2
DCR max
max (µH)
(Ohms)
1400
1.150
1400
1.150
680
0.415
750
0.415
350
0.150
370
0.158
275
0.114
320
0.115
190
0.057
220
0.062
140
0.042
155
0.043
111
0.030
122
0.029
H
max
2.100/53,3
2.200/55,9
2.215/56,3
2.200/55,9
2.200/55,9
2.200/55,9
2.200/55,9
2.225/56,5
2.200/55,9
2.280/47,9
2.200/55,9
2.250/57,2
2.250/57,2
2.280/57,9
L
max
2.100/53,3
2.150/54,6
2.150/54,6
2.150/54,6
2.180/55,4
2.180/55,4
2.180/55,4
2.180/55,4
2.180/55,4
2.250/57,2
2.250/57,2
2.300/58,4
2.250/57,2
2.300/58,4
Lead
W
X
Y
diameter
max
±0.01/0,25 ±0.01/0,25
nom
1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37
1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37
1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37
1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37
1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37
1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37
1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37
1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37
1.130/28,7 1.50/38,1 0.90/22,9 0.042/1,07
1.150/29,2 1.50/38,1 0.90/22,9 0.042/1,07
1.130/28,7 1.50/38,1 0.90/22,9 0.048/1,22
1.130/28,7 1.50/38,1 0.90/22,9 0.048/1,22
1.150/29,2 1.50/38,1 0.90/22,9 0.054/1,37
1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37
PC board
hole
diameter
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.091/2,32
0.071/1,80
0.071/1,80
0.081/2,06
0.081/2,06
0.091/2,32
0.091/2,32
Inductance is per winding, tested at 15.75 kHz, 0 Adc.
Leakage inductance is measured from pin 1 to pin 4 with pins 2 and 3 shorted.
Operating temperature range –40°C to +85°C.
Electrical specifications at 25°C.
Specifications subject to change without notice.
Please check our website for latest information.
Document 326-3
Revised 08/20/08
© Coilcraft, Inc. 2009
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