MARUWA GENERAL CATALOG
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.
a Features
• 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 (0.1F 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.
a Applications
Noise reduction for signal lines and DC lines in computers, computer peripheral equipment, digital TV, DVD recorder, cellular telephone, automotive electronics, printer, FAX, etc.
a Part
Number System
CNF
(mm)
L1
223
S
Temperature characteristics
Capacitance
Capacitance tolerance
31 : 3.2҂1.25
(L) (W)
30 : 3.2҂1.6
(L) (W)
32 : 3.2҂2.5
(L) (W)
a Dimensions
L2
R
Style
Series
L1
31
Type
C : ȗ30ppm/°C
R : ȗ15%
U : –750ȗ120
ppm/°C
L
L
W
t
L1
circuit
L2
2.5ȗ0.2 1.6ȗ0.2
0.4ȗ0.2 1.1ȗ0.2
Number List • Specifications
Part number
Capacitance
CNF31C220S–ȞM
CNF31C470S–ȞM
CNF31C101S–ȞM
CNF31C221S–ȞM
CNF31R471S–ȞM
CNF31R102S–ȞM
CNF31R222S–ȞM
CNF31R223S–ȞM
CNH31U332S–ȞM
CNH31R223S–ȞM
CNH31R473S–ȞM
CNH30R104S–ȞM
CNH30R106M–ȞM
CNH32R106M–ȞM
CNH30R226M–ȞM
CNH32R476M–ȞM
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
50V DC
10,000M⍀min.
0.3 ⍀max.
0.3A DC
–55~+125°C
+50, –20%
25V DC
1,000M⍀min.
10,000M⍀min.
5,000M⍀min.
1,000M⍀min.
50M⍀min.
50M⍀min.
25M⍀min.
10M⍀min.
2 A DC
50V DC
ȗ20%
Temp. range
1 A DC
2 A DC
25V DC
16V DC
25V DC
6.3V DC
4.0V DC
6 A DC
0.05⍀max.
0.08⍀max.
0.07⍀max.
10m⍀max.
–55~+85°C
5m⍀max.
Ȟ : "T" stands for taping package and "B" stands for bulk package.
a Insertion
loss (Reference)
CNH31 ,CNH30 ,CNH32 TYPE
CNF31 TYPE
0
0
100
10
47 22
Insertion loss (dB)
10
Insertion loss (dB)
EMI FILTERS
3.2ȗ0.2 1.6ȗ0.2 1.3ȗ0.2
CNH32
a Part
Termination
M : Ni-Barrier termination
1.25ȗ0.2 0.7ȗ0.2 0.4ȗ0.3 1.1ȗ0.3
CNH30
W
M
Packing form
T : Taping
B : Bulk
S : +50,–20%
T
a Equivalent
CNF31
CNH31
t
–
20
2200
30
1000
470
22000
40
220
50
3,300pF
20
100,000pF
30
40
50
47,000pF
47μF
47
22μF
22
22,000pF
10μF
10
60
70
60
80
70
90
80
0.1
1
10
Frequency (MHz)
86
100
1000
10000
10
0.0001
0.001
0.01
0.1
1
Frequency (MHz)
10
100
1000
10000
