Outline of EMI Suppression Filters (EMIFILr) for DC Line
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
Chip EMIFILr
..............P.70–73
P.74
P.89–92
Disk Type EMIFILr
...........P.110–116
...........P.86–88
NFE31P
NFE61P/H
NFM21P
NFM21C
NFM3DC
DS
-6
DS
-9
DS
-9H
T-type Chip EMIFILr
oChip EMIFILr
oT-type Chip EMIFILr
oDisk Type EMIFILr
NFA31C
" 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 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.
A 3-terminal capacitor has a higher self resonance frequency than
a general 2-terminal type and exhibits effective noise suppression
at high frequency.
[Comparison of Insertion Loss Characteristics]
80
60
40
20
0
1
5
10
C 2200PF
50
100
500 1000
Frequency [MHz]
2-
Te
rm
ina
l
Ca
pa
cit
or
3-
Te
rm
in
al
Ca
pa
cit
or
(D
SN
9H
B3
2E
22
2Q
55
)
Ideal
Chara
cteris
tics o
f
Capa
citor
3-T
erm
ina
l C
ap
acit
or
(B
uilt-
in
Be
ad
)
(D
SS
9H
B3
2E
22
2Q
55
)
NFM18P
7
Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this PDF catalog to prevent smoking and/or burning, etc.
This catalog has only typical specifications. Therefore, you are requested to approve our product specifications or to transact the approval sheet for product specificaions before ordering.
!Note
C31E9.pdf 03.3.12
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