MARUWA GENERAL CATALOG
CHIP TYPE EMI FILTER ARRAYS [ CNA30 Series ]
The EMI chip filter in the CNA30 Series is a compound type EMI filter with four built-in 3-terminal capacitors on one chip of 3216 size.
a Features
• The structure minimizes the residual inductance, and the self resonant frequency is high, ensuring large insertion loss in the wide
band.
• The common gland electrode built in a chip ensures complete grounding of all lines at the gland on both ends. The filter is designed to control cross talk.
• An optimum constant can be selected from the capacity range of 22-22,000 pF to best suit the frequency.
• Nickel and tin plated barrier terminations offer good solderability and resistance to soldering heat.
• RoHS Compliant.
a Applications
Noise reduction for DC lines in computers, computer peripheral equipment, digital TV, DVD recorder, cellular telephone,
automotive electronics, printer, FAX, etc.
a Part Number System
CNA
30
Series
R
223
Style
Temperature characteristics
30 : 3.2҂1.6
(L) (W)
M
C : ȗ30ppm/°C
R : ȗ15%
U : –750ȗ120
ppm/°C
Capacitance
–
Capacitance tolerance
M : ȗ20%
a Dimensions
T
Packing form
T : Taping
B : Bulk
M
Termination
M : Ni-Barrier termination
a Equivalent circuit
L
Type
W
L
W
t
L1
L2
P
GND
T
EMI FILTERS
CNA30 3.2ȗ0.2 1.6ȗ0.2 0.7ȗ0.2 0.4ȗ0.2 0.8ȗ0.2 0.8ȗ0.1
GND
L2
P
L1
(mm)
a Part Number List • Specifications
Part number
Capacitance
CNA30C220M–ȞM
CNA30C470M–ȞM
CNA30C101M–ȞM
CNA30C221M–ȞM
CNA30U471M–ȞM
CNA30R102M–ȞM
CNA30R222M–ȞM
CNA30R223M–ȞM
22pF
47pF
100pF
220pF
470pF
1,000pF
2,200pF
22,000pF
Capacitance Rated voltage Rated current
tolerance
50V DC
ȗ20%
0.3A DC
IR
DC resistance
Temp. range
10,000M⍀min.
0.3⍀max.
–55~+125°C
25V DC
Ȟ : "T" stands for taping package and "B" stands for bulk package.
a Insertion loss (Reference)
CNA30 TYPE
0
Insertion loss (dB)
100
10
20
47
22
2200
1000
30
470
40
220
22000
50
60
70
0.1
1
10
100
1000
10000
Frequency (MHz)
89