®
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
• RoHS compliant (-R option)
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.
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) minimum
(1-2) & (3-4)
4.5
8
12.6
18
25
32.8
41.5
51.2
62
73.7
100
131
166
205
25
40
57
102
160
230
270
360
460
575
700
915
1070
1340
28
45
64
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
Packaging
• Supplied in tape and reel packaging, 2,000 (CMS1),
800 (CMS2), and 600 (CMS3) per reel
OPTION CODE
Description
RoHS compliant version
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
Option Code
-R
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
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) minimum
(1-2) & (3-4)
88
146
217
258
350
400
518
648
790
1030
1310
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 7/05
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Technologies 2005
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