Datasheet
TEP 75WI Series
Application Note
http://www.tracopower.com Page 51 of 69
EMI considerations
Suggested schematic for EN55022 conducted emission Class A limits
Recommended Layout With Input Filter
To meet conducted emissions EN55022 CLASS A needed the following components：
TEP 75-72xxWI
Component Value Voltage Reference
C1, C2 150 μF 200 V Nippon chemi-con KXJ series
C6 1 μF 250 V 1812 MLCC
C7, C8 1000 pF 3 KV 1808 MLCC
L1 4.7 μH ± 20% ---- Inductor, P/N：TCK-099
Note：1. Inductor L1 has been dened and show in page 54.
2. While testing, connect the CASE pin and four screw bolts to shield plane, the EMI could be reduced.