Datasheet

DataSheet
40W, Triple Output
VER:00 Page 31 of 40 Issued Date：2009/03/02
EMC Considerations (Continued)
Suggested Schematic for EN55022ConductedEmission Class B Limits
Recommended LayoutwithInputFilter
To meet conducted emissions EN55022CLASS B neededthe following components：
PXF40-12Txxxx
Component Value Voltage Reference
C1、C3 4.7uF 50V 1812 MLCC
C5、C6 1000pF 2KV 1808 MLCC
L1 450uH ---- Common Choke
PXF40-24Txxxx
Component Value Voltage Reference
C1、C3 6.8uF 50V 1812 MLCC
C5、C6 1000pF 2KV 1808 MLCC
L1 450uH ---- Common Choke
PXF40-48Txxxx
Component Value Voltage Reference
C1、C2 2.2uF 100V 1812MLCC
C3、C4 2.2uF 100V 1812MLCC
C5、C6 1000pF 2KV 1808 MLCC
L1 830uH ---- CommonChoke`