MARUWA GENERAL CATALOG
CHIP TYPE EMI FILTERS [ CNF20 Series ]
The CNF20 series is an extremely small (2.0҂1.25) 3-terminal chip capacitor. It is well suited for reducing EMI noise.
a Features
• Due to its small size and low residual inductance, it performs noise reduction at higher frequencies than conventional capacitors.
• An optimum constant can be selected according to the frequency from the 22-2,200 pF capacitance range.
• Nickel and tin plated barrier terminations offer good solderability and resistance to soldering heat.
• RoHS Compliant.
a Applications
Noise reduction for computers, computer peripheral equipment, digital TV, DVD recorder, cellular telephone, automotive electronics,
etc.
a Part
Number System
CNF
20
R
Style
20 : 2.0҂1.25
(L) (W)
Series
102
S
Temperature characteristics
C : ȗ30ppm/°C
R : ȗ15%
Capacitance
Capacitance tolerance
S : +50,–20%
a Dimensions
L2
T
M
Packing form
T :Taping
B :Bulk
Termination
M : Ni-Barrier termination
a Equivalent
L1
(mm)
L
Type
W
t
L1
circuit
L2
t
L1
–
CNF20
2.0±0.2 1.25±0.2 0.8±0.2 0.3±0.2 0.6±0.2
W
L
Number List • Specifications
Part number
Capacitance Rated voltage Rated current
tolerance
Capacitance
CNF20C220S–ȞM
IR
DC resistance
Temp. range
10,000M⍀min.
0.3 ⍀max.
–55~+125°C
22pF
CNF20C470S–ȞM
47pF
CNF20C101S–ȞM
100pF
CNF20C221S–ȞM
220pF
CNF20R471S–ȞM
470pF
CNF20R102S–ȞM
1,000pF
CNF20R222S–ȞM
2,200pF
+50, –20%
50V DC
0.4A DC
Ȟ : "T" stands for taping package and "B" stands for bulk package.
a Insertion
loss (Reference)
CNF20 TYPE
0
47
10
Insertion loss (dB)
EMI FILTERS
a Part
22
20
30
2200
1000
40
470
50
220
60
100
70
80
1
10
100
Frequency (MHz)
84
1000
10000
