Recommended Filter for EN55022 Class B Compliance
The components used in the above figure, together with the
manufacturers’ part numbers for these components, are as
follows:
1. All dimensions in Inches (mm)
Tolerance: X.XX±0.02 (X.X±0.5)
X.XXX±0.01 (X.XX±0.25)
2. Pin pitch tolerance
±0.01(0.25)
3. Pin dimension tolerance
±0.004
(0.1)
C1
FEC60-
24xxx
FEC60-
48xxx
4.7μF/50V
1812MLCC
C2
N/A
C3
4.7μF/50V
1812MLCC
C4
N/A
2.2μF/100V 2.2μF/100V 2.2μF/100V
1812MLCC 1812MLCC 1812MLCC
N/A
L1
450μH
1000pF/2KV Common
MLCC
Choke
PMT-048
830μH
1000pF/2KV Common
MLCC
Choke
PMT-053
C5 & C6
PIN CONNECTION
PIN
1
2
3
4
5
6
7
8
SINGLE
+INPUT
-INPUT
CTRL
-SENSE
+SENSE
+OUTPUT
-OUTPUT
TRIM
EXTERNAL OUTPUT TRIMMING
Output can be externally trimmed by
using the method shown below.
TRIM UP
TRIM DOWN
4
8
R
U
8
5
R
D
Recommended EN55022 Class B Filter Circuit Layout
Page 3 of 3
Issued Date：2008/06/12
P-DUKE [ POWER MATE TECHNOLOGY CO., LTD ]
