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© 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
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.
5
10
15
20
25
30
35
40
45
50
Frequency (MHz)
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.
5
10
15
20
0.0001 0.001 0.01 0.1 110 100
Frequency (MHz)
P3213-A
P3214-A
P3215-A, P3216-A,
P3217-A, P3218-A