Data Sheet

WPMDH1152401 / 171012402
MagI
3
C Power Module
VDRM – Variable Step Down Regulator Module
we-online.com Würth Elektronik eiSos GmbH & Co. KG – Data Sheet Rev. 2.0
© December 2017
47/54
Filter suggestion for conducted EMI
The input filter shown in the schematic below is recommended to achieve conducted compliance according to EN55022
Class B (see results on page 8).
For radiated EMI the input filter is not necessary. It is only used to comply with the setup recommended in the norms.
C2
V
IN
Cf
Lf
C3
GND
+
C1
Input LC Filter
VIN
GND
Power Module
Bill of Material of the Input LC Filter
Designator
Description
Order Code
Manufacturer
C
f
Filter ceramic chip capacitor 4.7μF/100V X5R, 1210
885012209048
Würth Elektronik
Lf
Filter inductor, 10µH, TI family
7447462100
Würth Elektronik
Filter inductor, 10µH, PD2 family
74477410
Würth Elektronik