MEE1 Series
Isolated 1W Single Output DC/DC Converters
KDC_MEE1.C03 Page 7 of 13
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EMC FILTERING AND SPECTRA
FILTERING
An input capacitor and inductor is required to meet EN 55022 Curve B, Quasi-Peak EMC limit, as shown in the following plots. The following plots show positive and
negative quasi peak and CISPR22 Average Limit B (pink line) and Quasi Peak Limit B (green line) adherence limits.
MEE1S0303XC MEE1S0305XC
DC
DC
L
C
Load
Power
Source
0
10
20
30
40
50
60
70
80
1.00E+05 1.00E+06 1.00E+07 1.00E+08
dBuV
Frequency (Hz)
0
10
20
30
40
50
60
70
80
1.00E+05 1.00E+06 1.00E+07 1.00E+08
dBuV
Frequency (Hz)
Inductor Capacitor
L, µH SMD Through Hole
C, µF
MEE1S0303XC
10 82103C 11R103C
1
MEE1S0305XC 10 82103C 11R103C 1
MEE1S0309XC 10 82103C 11R103C 1
MEE1S0312XC 10 82103C 11R103C 1
MEE1S0315XC 10 82103C 11R103C 1
MEE1S0503XC 10 82103C 11R103C 0.68
MEE1S0505XC 10 82103C 11R103C 0.68
MEE1S0509XC 10 82103C 11R103C 0.68
MEE1S0512XC 10 82103C 11R103C 0.68
MEE1S0515XC 10 82103C 11R103C 0.68
MEE1S1205XC 10 82103C 11R103C 0.68
MEE1S1209XC 10 82103C 11R103C 0.68
MEE1S1212XC 10 82103C 11R103C 2.2
MEE1S1215XC 10 82103C 11R103C 2.2
MEE1S1505XC 10 82103C 11R103C 2.2
MEE1S1509XC 10 82103C 11R103C 2.2
MEE1S1512XC 10 82103C 11R103C 2.2
MEE1S1515XC 10 82103C 11R103C 2.2
MEE1S2405XC 10 82103C 11R103C 4.7
MEE1S2409XC 10 82103C 11R103C 4.7
MEE1S2412XC 10 82103C 11R103C 4.7
MEE1S2415XC 10 82103C 11R103C 4.7
