WPMIx9200501S / 1779205x1
MagI3C Power Module
FISM – Fixed Isolated SIP Module
APPLICATION CONSIDERATIONS
Filter Suggestion for Conducted and Radiated EMI
The input filter shown in the schematic below is recommended to achieve conducted and radiated EMI compliance
according to EN55022 Class B (see results on pages 9 to 12).
C4
4
3
2
1
+VIN
-VIN
+VOUT
-VOUT
+VOUT
-VOUT
+VIN
-VIN
L1
DC
C1
C2
C3
DC
Component Values for Class B filters for the EN55022: C3 is an optional MLCC cap to build up a PI - Filter
Input Voltage 3.3V:
Designator
Description
Filter ceramic chip capacitor 22µF/10V 1210 X7R
Filter inductor, 3.3µH, PD2 family
Order Code
885012209006
744773033
Manufacturer
Würth Elektronik
Würth Elektronik
C1
L1
Filter ceramic chip capacitor 470pF/250Vac/2500V Impulse
Voltage 1808 X7R
C4
885362210009
Würth Elektronik
Input Voltage 5V:
Designator
Description
Order Code
885012209028
744773047
Manufacturer
Würth Elektronik
Würth Elektronik
C1
L1
Filter ceramic chip capacitor 10µF/25V 1210 X7R
Filter inductor, 4.7µH, PD2 family
Filter ceramic chip capacitor 470pF/250Vac/2500V Impulse
Voltage 1808 X7R
C4
885362210009
Würth Elektronik
Input Voltage 12V:
Designator
Description
Order Code
885012209048
744773122
Manufacturer
Würth Elektronik
Würth Elektronik
C1
L1
Filter ceramic chip capacitor 4.7µF/50V 1210 X7R
Filter inductor, 22µH, PD2 family
Filter ceramic chip capacitor 470pF/250Vac/2500V Impulse
Voltage 1808 X7R
C4
885362210009
Würth Elektronik
Input Voltage 24V:
Designator
Description
Order Code
885012209048
885012209048
744773168
Manufacturer
Würth Elektronik
Würth Elektronik
Würth Elektronik
C1
C2
L1
Filter ceramic chip capacitor 4.7µF/50V 1210 X7R
Filter ceramic chip capacitor 4.7µF/50V 1210 X7R
Filter inductor, 68µH, PD2 family
Filter ceramic chip capacitor 1000pF/250Vac/5000V Impulse
Voltage 1808 X7R
C4
885352210013
Würth Elektronik
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©July 2016
Würth Elektronik eiSos GmbH & Co. KG – Data Sheet Rev. 1.0
18/22
WURTH [ WURTH ELEKTRONIK GMBH & CO. KG, GERMANY. ]
