This is the PDF file of catalog No.C31E-6
C31E6.pdf 01.5.29
On-Board Type (DC) EMI Suppression Filters(EMIFILr)
Chip EMIFILr NFM21C/NFM3DC/NFM41C Series
s
Features
1. Small and low profile of 2.0mmx1.25mmx0.85mm (NFM21C)
enables high density mounting.
2. The 3 terminal structure enables high performance in
high frequency range.
3. Use original electrode structure which realize
excellent solderability.
NFM21C
0.6±0.2
2.0±0.2
0.85±0.1
The chip solid "EMIFIL" series is a chip type 3-terminal
EMI suppression filter. It can reduce residual
inductance to an extremely low level making it excellent
for noise suppression at high frequencies.
An electrostatic capacitance range of 22pF to 22,000pF
enables suppression of noise at specific frequencies.
4
+0.2
0.2 -0.1
1.25±0.1
0.3±0.2
(in mm)
s
Applications
• PCs and peripherals which emit high amount of noise
• Compact size equipment such as PDA, PC card and mobile
telecommunication equipments
• Severe EMI suppression and high impedance circuits
such as digital circuits
NFM3DC
1.1±0.3
3.2±0.2
(2)
(1)
0.05min.
(4)
0.3±0.2
(in mm)
(3)
1.25±0.2
0.7±0.2
1.5±0.3
4.5±0.3
(4)
1.6±0.3
(1)
(3)
NFM41C
0.3
+0.3
-0.2
(2)
0.4±0.3
(in mm)
NFM21C Series
Part Number
NFM21CC220U1H3
NFM21CC470U1H3
NFM21CC101U1H3
NFM21CC221R1H3
NFM21CC471R1H3
NFM21CC102R1H3
NFM21CC222R1H3
NFM21CC223R1H3
Capacitance
(pF)
22 +20%,-20%
47 +20%,-20%
100 +20%,-20%
220 +20%,-20%
470 +20%,-20%
1000 +20%,-20%
2200 +20%,-20%
22000 +20%,-20%
Rated Voltage
(Vdc)
50
50
50
50
50
50
50
50
Rated Current
300mA
300mA
300mA
300mA
300mA
300mA
300mA
1A
Insulation Resistance
(M ohm)
1000 min.
1000 min.
1000 min.
1000 min.
1000 min.
1000 min.
1000 min.
1000 min.
Operating Temperature Range
(°C)
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
1.0±0.2
69
This is the PDF file of catalog No.C31E-6
C31E6.pdf 01.5.29
s
Equivalent Cirucit
s
Insertion Loss Characteristics (Typical)
NFM21C Series
0
22pF
47pF
20
Insertion Loss (dB)
100pF
220pF
470pF
40
22000pF
60
2200pF
80
1000pF
Input
Output
4
* no polarity.
GND
100
1
5
10
50
100
500
1000
2000
Frequency (MHz)
NFM3DC Series
Part Number
NFM3DCC220U1H3
NFM3DCC470U1H3
NFM3DCC101U1H3
NFM3DCC221R1H3
NFM3DCC471R1H3
NFM3DCC102R1H3
NFM3DCC222R1H3
NFM3DCC223R1H3
Capacitance
(pF)
22 +50%,-20%
47 +50%,-20%
100 +50%,-20%
220 +50%,-20%
470 +50%,-20%
1000 +50%,-20%
2200 +50%,-20%
22000 +50%,-20%
Rated Voltage
(Vdc)
50
50
50
50
50
50
50
50
Rated Current
(mA)
300
300
300
300
300
300
300
300
Insulation Resistance
(M ohm)
1000 min.
1000 min.
1000 min.
1000 min.
1000 min.
1000 min.
1000 min.
1000 min.
Operating Temperature Range
(°C)
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
s
Equivalent Cirucit
s
Insertion Loss Characteristics (Typical)
NFM3DC Series
0
20
Insertion Loss (dB)
22000pF
40
2200pF
1000pF
470pF
Input
Output
60
* no polarity.
GND
220pF
100pF
47pF
22pF
80
100
1
5
10
50
100
500
1000
2000
Frequency (MHz)
NFM41C Series
Part Number
NFM41CC220U2A3
NFM41CC470U2A3
NFM41CC101U2A3
NFM41CC221U2A3
NFM41CC471R2A3
NFM41CC102R2A3
NFM41CC222R2A3
NFM41CC223R2A3
Capacitance
(pF)
22 +50%,-20%
47 +50%,-20%
100 +50%,-20%
220 +50%,-20%
470 +50%,-20%
1000 +50%,-20%
2200 +50%,-20%
22000 +50%,-20%
Rated Voltage
(Vdc)
100
100
100
100
100
100
100
100
Rated Current
(mA)
300
300
300
300
300
300
300
300
Insulation Resistance
(M ohm)
10000 min.
10000 min.
10000 min.
10000 min.
10000 min.
10000 min.
10000 min.
10000 min.
Operating Temperature Range
(°C)
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
70
This is the PDF file of catalog No.C31E-6
C31E6.pdf 01.5.29
s
Equivalent Cirucit
s
Insertion Loss Characteristics (Typical)
NFM41C Series
0
22pF
20
2200pF
Insertion Loss (dB)
22000pF
40
100pF
220pF
60
47pF
470pF
80
1000pF
Input
Output
4
* no polarity.
GND
100
1
5
10
50
100
500
1000
2000
Frequency (MHz)
71
This is the PDF file of catalog No.C31E-6
C31E6.pdf 01.5.29
Outlines of EMI Suppression Filter (EMIFILr) for DC Line
oChip
Solid EMIFILr
oT-type
Chip EMIFILr
oDisk
Type EMIFILr
Chip Solid EMIFIL
r
............P.69–74
P.87–90
T-type Chip EMIFIL
r
...........P.84–86
NFM21C
NFM21P
NFA6CC
NFE31P
NFE61P/H
NFM3DC
NFAC1C
NFA31C
Disk Type EMIFIL
r
...........P.132–137
DS-6
DS-9
DS-9H
"
This capacitor type EMI suppression filter has a large
noise suppression effect at frequencies ranging from a
few MHz to hundreds of MHz. This type of filter is used
widely as a universal, high performance EMI suppression
component.
"
The chip solid EMIFILr incorporates a built-in three-
terminal capacitor, eliminating the lead wire and thereby
increasing the high-frequency performance characteristic.
"
The T-type chip EMIFILr is a chip EMI suppression filter
with a built-in feed-thru capacitor. The use of ferrite
beads on input and output terminals minimizes
resonance with surrounding circuits.
"
Whatever the situation, 3-terminal construction reduces
residual inductance, thereby substantially improving
noise suppression at frequencies over 10MHz.
[Comparison of Insertion Loss Characteristics]
0
Insertion Loss [dB]
20
40
60
80
C 2200PF
l
ina
rm itor
Te c
2- apa
C
3-
(B Te
(D uilt- rmin
SS in al
9H Be Ca
B3 ad) pac
2E
ito
r
22
2Q
55
)
or
cit )
pa Q55
a
l C 222
ina 32E
rm B
Te 9H
3- SN
(D
Ide
Chaal
Cap racte
acit ristrc
or
of
1
5
10
50
100
500 1000
Frequency [MHz]
A 3-terminal capacitor has a high self resonance frequency than
general 2-terminal type and exhibits effective noise suppression at
high frequency
18
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