CHIP TYPE EMI FILTERS [ CNF31 ¥ CNH31 ¥ CNH30 ¥ CNH32 Series ]
The CNF31 . CNH31 . CNH30 . CNH32 series is a 3-terminal EMI filter for SMT based on multilayer chip capacitor technology.
The CNH series is suited for reducing EMI noise on DC power lines.
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Features
MARUWA
G
ENERAL CATALOG
• Due to its small size and low residual inductance, noise reduction is possible at higher frequencies than conventional capacitors.
• High current rating (~2A), makes it well suited for reducing EMI noise on DC power lines.
• High capacitance (0.1 F max.) enables reduction of noise over a wide frequency range.
• Nickel and tin plated barrier terminations offer good solderability and resistance to soldering heat.
• RoHS Compliant.
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Applications
Noise reduction for signal lines and DC lines in computers, computer peripheral equipment, digital TV, DVD recorder, cellular tel-
ephone, automotive electronics, printer, FAX, etc.
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Part
Number System
CNF
Series
31
Style
R
Temperature characteristics
223
Capacitance
S
Capacitance tolerance
–
T
Packing form
T :
Taping
B :
Bulk
M
Termination
M : Ni-Barrier termination
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Dimensions
L
1
L
2
L
1
t
L
W
31 : 3.2
(L)
30 : 3.2
(L)
32 : 3.2
(L)
1.25
(W)
1.6
(W)
2.5
(W)
C : 30ppm/°C
R : 15%
U : –750 120
ppm/°C
S : +50,–20%
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Equivalent
W
t
L
1
L
2
circuit
(mm)
Type
CNF31
CNH31
CNH30
CNH32
L
1.25 0.2 0.7 0.2 0.4 0.3 1.1 0.3
3.2 0.2 1.6 0.2 1.3 0.2
2.5 0.2 1.6 0.2
0.4 0.2 1.1 0.2
Insertion loss (dB)
20
30
40
50
60
70
80
0.1
1
10
Frequency (MHz)
100
1000
10000
22000
2200
1000
470
220
Insertion loss (dB)
EMI FILTERS
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Part
Number List • Specifications
Part number
Capacitance
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
22pF
47pF
100pF
220pF
470pF
1,000pF
2,200pF
22,000pF
3,300pF
22,000pF
47,000pF
100,000pF
10μF
10μF
22μF
47μF
Capacitance Rated voltage Rated current
tolerance
IR
DC resistance
Temp. range
CNF31C220S–
CNF31C470S–
CNF31C101S–
CNF31C221S–
CNF31R471S–
CNF31R102S–
CNF31R222S–
CNF31R223S–
CNH31U332S–
CNH31R223S–
CNH31R473S–
CNH30R104S–
CNH30R106M–
CNH32R106M–
CNH30R226M–
CNH32R476M–
50V DC
+50, –20%
25V DC
50V DC
25V DC
16V DC
25V DC
6.3V DC
4.0V DC
0.3A DC
10,000M min.
0.3
max.
–55~+125°C
2 A DC
1 A DC
2 A DC
6 A DC
20%
1,000M min.
10,000M min.
5,000M min.
1,000M min.
50M min.
50M min.
25M min.
10M min.
0.05 max.
0.08 max.
0.07 max.
10m max.
5m max.
–55~+85°C
: "T" stands for taping package and "B" stands for bulk package.
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Insertion
0
loss (Reference)
CNH31 ,CNH30 ,CNH32 TYPE
100
0
47 22
10
20
30
40
50
60
70
80
90
10
0.0001
0.001
0.01
0.1
1
10
100
1000
10000
CNF31 TYPE
10
3,300pF
100,000pF
47μF
47
22μF
22
10μF
10
47,000pF
22,000pF
Frequency (MHz)
86
Embedded System
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