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
C2
C3
C4
C5 & C6
L1
450μH
FEC30-
24xxxW 1812 MLCC
6.8μF/50V
6.8μF/50V
1812 MLCC
1000pF/2KV Common
N/A
N/A
MLCC
Choke
PMT-048
450μH
PIN CONNECTION
FEC30- 2.2μF/100V 2.2μF/100V 2.2μF/100V 2.2μF/100V 1000pF/2KV Common
48xxxW 1812 MLCC 1812 MLCC 1812 MLCC 1812 MLCC
MLCC
Choke
PMT-048
PIN
1
SINGLE
+ INPUT
- INPUT
CTRL
DUAL
+ INPUT
- INPUT
CTRL
2
4
5
NO PIN
+ OUTPUT
- OUTPUT
TRIM
+ OUTPUT
COMMON
- OUTPUT
TRIM
6
7
8
EXTERNAL OUTPUT TRIMMING
Output can be externally trimmed by
using the method shown below.
(
) FOR DUAL OUTPUT TRIM
TRIM UP TRIM DOWN
8(8)
7(7)
RU
RD
8(8)
6(5)
Recommended EN55022 Class B Filter Circuit Layout
Page 3 of 3 Issued Date：2008/05/21
P-DUKE [ POWER MATE TECHNOLOGY CO., LTD ]
