DF220 查看數據表（PDF） - Murata Manufacturing
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DF220 Datasheet PDF : 22 Pages
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EMI LEADED FILTERS
EMI SUPPRESSION FILTERS
BLOCK FILTERS
BNP002/004 Series
Block-type BNP002 filters completely eliminate noise from
extremely wide frequency bands. The BNP002 is ideal for
eliminating noise in logic signal circuits and is designed to
perform superbly through the use of through-type barrier layer
capacitors, and bead inductors.
Each block contains a number of compact EMI suppression
filters. In addition, the input/output terminals and the grounding
terminal are aligned in the same direction, thus permitting fast
and easy assembly on any type of PC board.
FEATURES
s The EMIFIL BNP002 incorporates feed-thru type barrier
layer capacitors in Pi circuits, obtaining significantly large
insertion losses over an extremely wide frequency
range — from 15MHz up to 1GHz.
s The cut-off frequency is designed to be at several MHz,
which is ideal for eliminating noise from any circuit in which
the signal frequency and the noise frequency are relatively
close together.
APPLICATIONS
Noise elimination from signal lines and DC power sources in
engine control units, digital equipment and computer terminals.
s Since all noise in parallel signal lines can be eliminated by
one filter block, minimum board space is utilized.
s There are no connections in the feed-thru current circuits,
thus ensuring highly reliable performance.
s Both the input/output terminals and the grounding terminal
are aligned in the same direction, permitting fast and easy
installation on any type of PC board.
DIMENSIONS: mm
BNP002-02
BNP004-02
0.8 ± 0.1
2.5 ± 0.2
2.5 ± 0.1
12.0 ± 0.5
11.0 ± 0.5
12.0 max.
3.5 ±1.0
17.0
5.0 ± 0.5 0.6 ± 0.1
0.8 D.
2.5x4=10
1.2 D. x 7
2.5 ± 0.1
2.5 ± 0.1
10.0 ± 0.1
2.5 ± 0.2
MOUNTING HOLES
BNP002-03
0.8 ± 0.1
2.5 ± 0.2
2.5 ± 0.1
17.0 ± 0.5
2.5x6=15
15.0 ± 0.1
11.0 ± 0.5
12.0 max.
3.5 ±1.0
17.0
5.0 ± 0.5
1.2 D. x 10
2.5 ± 0.1
2.5 ± 0.1
0.8 D.
0.6 ± 0.1
2.5 ± 0.2
Unit: mm
SPECIFICATIONS
Item
Part Number
Number of Circuits
Circuit Construction
Operating Temperature
Range
Rated Voltage
Withstand Voltage
Maximum Current
Capacity
Insulation Resistance
DC Resistance
Insertion Loss
BNP002-02
2
Specifications
BNP002-03
3
π
BNP004-02
2
–40°C to +100°C
50VDC
300VDC
125VDC
10ADC
1000M Ohms min.
0.05 Ohms max., (20°C to 25°C)
20MHz to 500MHz: 40dB 300MHz to 1GHz
(20°C to 25°C) min.
40dB min.
EQUIVALENT CIRCUIT
BNP002-02
BNP004-02
BNP002-03
RECOMMENDED P.C. BOARD PATTERN
Top View
Bottom View
TYPICAL INSERTION LOSS CHARACTERISTICS
0
20
BNP004
BNP002
40
60
Capacitance value of each
circuit (π) is 6600 pF min.
a : Ground Terminal
Non-Directional
Available as standard through authorized Murata Electronics Distributors.
CG01-I
80
100
1
10
100
Frequency (MHz)
1000
259
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