®
CMS-SERIES
Common Mode Inductors
(Surface Mount)
Description
• 160C maximum total temperature
• Three sizes of surface mount torroidal common mode
inductors that provide 300Vdc isolation
• Inductance range from 5.5uH to 1600uH
• Current range up to 7.0 Amps
• Noise attenuation up to 44 dB
• Frequency range up to 100 MHz
• Meets UL94V-0 flammability standard
Applications
• EMI filters
• DC-DC brick power supplies
• Discrete output supplies
• Discrete and point-of-use power supplies (PUPS)
Environmental Data
• Storage temperature range: -40°C to +160°C
• Operating ambient temperature range: -40°C to +160°C
(range is application specific)
• Infrared reflow temperature: +240°C for 30 seconds max.
Packaging
• Supplied in tape and reel packaging, 2,000 (CMS1),
800 (CMS2), and 600 (CMS3) per reel
Part Number
CMS1-1
CMS1-2
CMS1-3
CMS1-4
CMS1-5
CMS1-6
CMS1-7
CMS1-8
CMS1-9
CMS1-10
CMS1-11
CMS1-12
CMS1-13
CMS1-14
CMS2-1
CMS2-2
CMS2-3
CMS2-4
CMS2-5
CMS2-6
CMS2-7
CMS2-8
CMS2-9
CMS2-10
CMS2-11
CMS2-12
CMS2-13
CMS2-14
CMS3-1
CMS3-2
CMS3-3
OCL
(uH) nominal
(1-2) & (4-3)
5.5
10
15
22
30
40
50
62
75
90
120
160
200
250
30
48
69
122
190
275
320
430
550
690
840
1100
1300
1600
35
54
78
I rms.
Amperes
Max *
7.00
5.70
4.10
3.80
3.60
3.10
2.60
2.20
1.90
1.65
1.35
1.15
1.00
0.85
5.35
4.40
3.60
2.80
2.30
1.85
1.60
1.35
1.10
0.94
0.80
0.67
0.58
0.50
5.70
5.10
4.75
DCR (Ω) typ
@ 20°C
(1-2)
0.0027
0.0040
0.0077
0.0089
0.0100
0.0138
0.019
0.026
0.035
0.048
0.070
0.100
0.138
0.186
0.005
0.008
0.012
0.019
0.029
0.044
0.060
0.084
0.120
0.170
0.230
0.330
0.440
0.620
0.005
0.006
0.007
DCR (Ω) typ
@ 20°C
(4-3)
0.0027
0.0040
0.0077
0.0089
0.0100
0.0138
0.019
0.026
0.035
0.048
0.070
0.100
0.138
0.186
0.005
0.008
0.012
0.019
0.029
0.044
0.060
0.084
0.120
0.170
0.230
0.330
0.440
0.620
0.005
0.006
0.007
Leakage
Inductance (uH)
typ
0.05
0.09
0.14
0.20
0.28
0.36
0.45
0.056
0.68
0.81
1.10
1.45
1.83
2.25
0.22
0.34
0.47
0.80
1.25
1.75
2.00
2.60
3.30
4.00
5.00
6.30
7.30
9.00
0.31
0.46
0.64
Interwinding
Capacitance (pF)
typ
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.7
2.8
2.9
3.0
3.1
3.2
2.0
2.3
2.5
2.8
3.1
3.4
3.6
3.9
4.1
4.3
4.6
4.9
5.1
5.4
2.80
3.05
3.30
Definitions:
OCL = Open Circuit Inductance
DCR = Direct Current Resistance
Irms = rms current for approx. a 40°C temperature rise at an ambient temperature of 85°C.
*Operating Temperature: 160°C Max. Inductance values are sustained up to 160°C.
Electrical Characteristics:
OCL (1-2) 0.10Vrms, 100kHz, 0.0Adc: (See Chart)
OCL (4-3) 0.10Vrms, 100kHz, 0.0Adc: (See Chart)
DCR (1-2) typ @ 20°C: (See Chart)
DCR (4-3) typ @ 20°C: (See Chart)
Hipot rating: winding to winding: 300Vdc min. for 1 second.
Turns Ratio: (1-2):(4-3) 1:1
®
CMS-SERIES
Common Mode Inductors
(Surface Mount)
Part Number
CMS3-4
CMS3-5
CMS3-6
CMS3-7
CMS3-8
CMS3-9
CMS3-10
CMS3-11
CMS3-12
CMS3-13
CMS3-14
OCL
(uH) nominal
(1-2) & (4-3)
105
175
260
310
420
480
620
780
950
1250
1600
I rms.
Amperes
Max *
3.95
3.10
2.85
2.45
2.00
1.70
1.45
1.20
1.05
0.88
0.75
DCR (Ω) typ
@ 20°C
(1-2)
0.010
0.017
0.020
0.027
0.040
0.053
0.076
0.107
0.145
0.210
0.300
DCR (Ω) typ
@ 20°C
(4-3)
0.010
0.017
0.020
0.027
0.040
0.053
0.076
0.107
0.145
0.210
0.300
Leakage
Inductance (uH)
typ
0.85
1.30
1.90
2.20
3.00
3.30
4.20
5.10
6.10
7.80
9.60
Interwinding
Capacitance (pF)
typ
3.50
3.70
3.90
4.15
4.40
4.65
4.85
5.10
5.35
5.55
5.80
Definitions:
OCL = Open Circuit Inductance
DCR = Direct Current Resistance
Irms = rms current for approx. a 40°C temperature rise at an ambient temperature of 85°C.
*Operating Temperature: 160°C Max. Inductance values are sustained up to 160°C.
Electrical Characteristics:
OCL (1-2) 0.10Vrms, 100kHz, 0.0Adc: (See Chart)
OCL (4-3) 0.10Vrms, 100kHz, 0.0Adc: (See Chart)
DCR (1-2) typ @ 20°C: (See Chart)
DCR (4-3) typ @ 20°C: (See Chart)
Hipot rating: winding to winding: 300Vdc min. for 1 second.
Turns Ratio: (1-2):(4-3) 1:1
Mechanical Diagrams
RECOMMENDED PCB LAYOUT
CMS1 Series
4.73
TOP VIEW
9.4 max
SCHEMATIC
2
FRONT VIEW
1:1
3
CMS1-
wwllyy R
7.2 max
2.86
1
4
4
1
Pin 1 indicator
White dot
2.6 max
8.58
1.5
2.5
2.86
4.71
8.60
2
3
Component Side
CMS2 Series
CMS3 Series
®
CMS-SERIES
Common Mode Inductors
(Surface Mount)
Impedance Curves
Impedance
350
300
250
200
150
100
50
0
0.4
0.6
0.8
CMS1-1 & 4
4000
Impedance
-14
-11
CMS1 - 7,11, & 14
-4
Z (Ohms)
Z (Ohms)
3000
-1
2000
1000
0
0.4
0.6
-7
1
2
3
4
6
8
10
0.8
1
2
3
4
6
8
10
FREQUENCY (MHz)
FREQUENCY (MHz)
Impedance
1800
1600
1400
1200
1000
800
600
400
200
0
0.4
0.6
CMS2 - 1 & 4
18000
16000
14000
12000
10000
8000
6000
4000
2000
0
0.4
Impedance
-14
CMS2 - 7,11, & 14
-4
Z (Ohms)
Z (Ohms)
-11
-7
-1
0.8
1
2
4
6
8
10
20
0.6
0.8
1
2
3
4
6
FREQUENCY (MHz)
FREQUENCY (MHz)
Impedance
1600
1400
Z (Ohms)
1200
1000
800
600
400
200
0
0.4
0.6
0.8
1
CMS3 - 1 & 4
16000
14000
Z (Ohms)
12000
10000
8000
6000
4000
2000
0
2
3
4
6
8
Impedance
CMS3 - 7,11, & 14
-4
-14
-11
-7
-1
0.4
0.6
0.8
1
2
3
4
6
8
FREQUENCY (MHz)
FREQUENCY (MHz)
PM-4313 1/05
© Cooper Electronic
Technologies 2005
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