US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
Common Mode Line Chokes
Document 143-1
Document 143-1 Revised 04/20/12
Coilcraft’s Toroid Style common mode chokes are de-
signed for optimum performance. Their single layer wind-
ings provide for the highest common mode impedance
over the widest frequency range.
These common mode line chokes come in two series:
Standard and High Inductance. Both are well suitable for
switching power supplies operating in the 100-300 kHz
range of switching frequencies.
• UL1446 Class B (130°C) Insulation System
(UL File E83628)
• Creepage and clearance = 3.2 mm
• 1250 Vrms, one minute isolation between windings
Coilcraft Designer’s Kit P402 contains samples of eight
standard EE and toroidal common mode line chokes.
To order, please contact Coilcraft or purchase on-line at
buy.coilcraft.com.
Standard Series
High L Series
Standard Series
High Inductance Series
1
2
4
3
Schematic
0.12
3,0
1.40
35,6
1.40
35,6
0.900
22,86
max
max max
23
12
0.150
3,81
±0.03
±0,76
43
21
Recommended
Board Layout
0.900
22,86
0.600
15,24
Part number
Internal code
Partsmanufactured prior
to February, 2012 maybe
markeddifferently.
CC-3Y
XXXX
P32xx-AL
0.12
3,0
1.23
31,2
1.25
31,8 0.625
15,88
max
max max
23
12
0.150
3,81
±0.03
±0,76
43
21
0.400
10,16
0.800
20,32
1
2
4
3
Schematic
Recommended
Board Layout
Part number
Internal code
Partsmanufactured prior
to February, 2012 maybe
markeddifferently.
CC-3Y
XXXX
P321x-AL
Terminations: Tin-silver over copper; #16 AWG (0.051″ / 1,29 mm) except
P3217-A, which has #18 AWG (0.040″ / 1,02 mm).
Terminations: Tin-silver over copper; #16 AWG (0.051″ / 1,29 mm)
US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
Document 143-2 Revised 04/20/12
Document 143-2
Standard Series
Shown here are typical common mode fre-
quency plots of each part number. The plots
indicate the relative performance of each part
over the frequency range of most interest for
designers of equipment that must meet FCC
and VDE noise regulations. It is important to
note that only a common mode signal will
be attenuated as shown. Differential mode
power such as 50/60 Hz power line currents
or data signals will pass through unimpeded
by the common mode impedance. The inser-
tion loss for differential signals is shown in
the lower graph. These data were taken in a
50 Ohm system. All parts should be tested
using an appropriate Line Impedance Sta-
bilization Network (LISN) when testing EMI/
RFI performance of off-line power converters.
Common Mode Attenuation*
Differential Mode Attenuation*
Current Leakage Interwinding Lead
Part Inductance rating inductance SRF DCR max isolation diameter Weight
number min (Amps) max (µH) typ (Ohms) (Volts rms) nom (g)
P3213-AL 3.5 mH 1.3 62 500 kHz 0.150 1250 0.051/1,29 15.8
P3214-AL 1.7 mH 2.0 32 850 kHz 0.065 1250 0.051/1,29 16.1
P3215-AL 1.0 mH 3.2 22 1.25 MHz 0.036 1250 0.051/1,29 16.9
P3216-AL 750 µH 5.0 19 1.30 MHz 0.022 1250 0.051/1,29 17.6
P3217-AL 425 µH 8.1 10 1.75 MHz 0.012 1250 0.040/1,02 18.2
P3218-AL 275 µH 13.0 8 2.00 MHz 0.008 1250 0.051/1,29 19.8
1. All parts have #16 AWG solder coated copper wire leads except P3217-A, which has #18 AWG leads.
2. Operating temperature range –40°C to +85°C.
3. Electrical specifications at 25°C.
4. Parts in bold type are included in Coilcraft Designer’s Kit P402.
0
5
10
15
20
25
30
35
40
45
50
Frequency (MHz)
Attenuation (dB)
0.0001 0.001 0.01 0.1 110100
P3218-A
P3216-A
P3217-A
P3215-A
P3214-A
P3213-A
*measured on Agilent/HP 3577A network analyzer.
0
5
10
15
20
Attenuation (dB)
0.0001 0.001 0.01 0.1 110 100
Frequency (MHz)
P3213-A
P3214-A
P3215-A, P3216-A,
P3217-A, P3218-A
US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
Document 143-3 Revised 04/20/12
Document 143-3
High Inductance Series
Shown here are typical common mode fre-
quency plots of each part number. The plots
indicate the relative performance of each part
over the frequency range of most interest for
designers of equipment that must meet FCC
and VDE noise regulations. It is important to
note that only a common mode signal will
be attenuated as shown. Differential mode
power such as 50/60 Hz power line currents
or data signals will pass through unimpeded
by the common mode impedance. The inser-
tion loss for differential signals is shown in
the lower graph. These data were taken in a
50 Ohm system. All parts should be tested
using an appropriate Line Impedance Sta-
bilization Network (LISN) when testing EMI/
RFI performance of off-line power converters.
Common Mode Attenuation*
Differential Mode Attenuation*
*measured on Agilent/HP 3577A network analyzer.
Current Leakage Interwinding Lead
Part Inductance rating inductance SRF DCR max isolation diameter Weight
number min (Amps) max (µH) typ (Ohms) (Volts rms) nom (g)
P3219-AL 10.8 mH 1.3 165 125 kHz 0.29 1250 0.051/1,29 36.0
P3220-AL 7.0 mH 2.0 100 225 kHz 0.15 1250 0.051/1,29 38.3
P3221-AL 3.7 mH 3.2 60 400 kHz 0.08 1250 0.051/1,29 38.7
P3222-AL 2.2 mH 5.0 35 600 kHz 0.04 1250 0.051/1,29 40.4
P3223-AL 1.1 mH 8.1 20 900 kHz 0.02 1250 0.040/1,02 40.9
P3224-AL 0.58 mH 13.0 10 1150 kHz 0.01 1250 0.051/1,29 40.9
1. All parts have #16 AWG solder coated copper wire leads except P3223-A, which has #18 AWG leads.
2. Operating temperature range –40°C to +85°C.
3. Electrical specifications at 25°C.
0
10
20
30
40
50
60
0.0001 0.001 0.01 0.1 110
100
Frequency (MHz)
Attenuation (dB)
P3222-A
P3223-A
P3224-A
P3219-A
P3220-A
P3221-A
0
10
20
30
Attenuation (dB)
0.0001 0.001 0.01 0.1 110
100
Frequency (MHz)
P3223-A, P3224-A
P3222-A
P3219-A
P3220-A
P3221-A
