(1/4)
3-terminal Filters(SMD)
For Signal Line
ACF Series ACF321825, 451832 Types
FEATURES
• The ACF series consists of products with superior attenuation
characteristics, in which the T-type filter circuit is magnetically
shielded with ferrite.
• The series offers even greater attenuation characteristics when
used in a stable circuit on the ground.
• The ACF series is ideal for high-density circuit design, since the
series is vertically mounted and does not require much mounting
space.
• Available for reflow soldering.
• It is a product conforming to RoHS directive.
PRODUCT IDENTIFICATION
ACF 321825 - 223 - T D
(1)
(2)
(3)
(4)
(5)
(1) Series name
(2) Dimensions
(3) Type
(4) Packaging style
(5) TDK internal code
TEMPERATURE RANGES
Operating/Storage
–25 to +85°C
Conformity to RoHS Directive
PACKAGING STYLE AND QUANTITIES
Packaging style
Taping
Quantity
1000 pieces/reel
HANDLING AND PRECAUTIONS
• Before soldering, be sure to preheat components. The preheat-
ing temperature should be set so that the temperature difference
between the solder temperature and product temperature does
not exceed 150°C.
• After mounting components onto the printed circuit board, do not
apply stress through board bending or mishandling.
• The inductance value may change due to magnetic saturation if
the current exceeds the rated maximum.
• Do not expose the inductors to stray magnetic fields.
• Avoid static electricity discharge during handling.
• When hand soldering, apply the soldering iron to the printed cir-
cuit board only. Temperature of the iron tip should not exceed
350°C. Soldering time should not exceed 3 seconds.
• Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific
bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.
• Please contact our Sales office when your application are considered the following:
The device’s failure or malfunction may directly endanger human life (e.g. application for automobile/aircraft/medical/nuclear power devices, etc.)
• All specifications are subject to change without notice.
005-01 / 20080806 / e9613_acf.fm
(2/4)
ACF321825 TYPE
SHAPES AND DIMENSIONS/CIRCUIT DIAGRAM
3.2± 0.3
Terminal
electrode
RECOMMENDED PC BOARD PATTERN
REFLOW SOLDERING
2.5±0.25
2
0.6
0.45
Ferrite
GND terminal
GND
2
No polarity
Dimensions in mm
• Dimension without tolerance
is reference value.
1.94
1
3
Insulation
resin
1
3
1.8±0.2
1.4
0.6
2.2
1.4
Resist
Land pattern
Dimensions in mm
ELECTRICAL CHARACTERISTICS
Part No.
ACF321825-223
ACF321825-103
ACF321825-682
ACF321825-472
ACF321825-332
ACF321825-222
ACF321825-152
ACF321825-102
ACF321825-681
ACF321825-471
ACF321825-331
ACF321825-221
ACF321825-151
ACF321825-101
ACF321825-680
ACF321825-470
ACF321825-330
ACF321825-220
25dB attenuation
frequency range
(MHz)
11 to 55
17 to 60
22 to 75
30 to 85
37 to 90
45 to 105
60 to 115
80 to 140
95 to 150
120 to 180
130 to 210
170 to 250
205 to 280
265 to 340
340 to 420
420 to 500
500 to 600
600 to 700
Rated voltage Edc
(V)max.
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
Rated current
(mA)max.
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
DC resistance
(Ω)max.
[Terminal No.1 to 3]
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
Insulation resistance
(MΩ)min.
[Terminal No.1 to 2/No.2 to 3]
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
TYPICAL ELECTRICAL CHARACTERISTICS
ATTENUATION vs. FREQUENCY CHARACTERISTICS
0
MEASURING CIRCUIT
S.G.
50Ω
ACF Series
L.M.
Attenuation (dB)
22
3
10
3
68 47
33
2 2
2
20
30
40
50
1
3
10
30
100
Frequency (MHz)
300
1000
• All specifications are subject to change without notice.
005-01 / 20080806 / e9613_acf.fm
50Ω
10
0
22
0
330
47
0
681
101
151
22
1
331
471
68
152
2
10
2
22
(3/4)
ACF451832 TYPE
SHAPES AND DIMENSIONS/CIRCUIT DIAGRAM
4.5±0.4
RECOMMENDED PC BOARD PATTERN
REFLOW SOLDERING
3.2±0.3
Terminal
electrode
1
3
1
2
1.0
3
Insulation
resin
GND
2
0.45
Ferrite
GND terminal
No polarity
Dimensions in mm
• Dimension without tolerance
is reference value.
1.94
1.8±0.2
1.75
1.0
3.5
Resist
Land pattern
1.75
Dimensions in mm
ELECTRICAL CHARACTERISTICS
Part No.
ACF451832-333
ACF451832-223
ACF451832-153
ACF451832-103
ACF451832-682
ACF451832-472
ACF451832-332
ACF451832-222
ACF451832-152
ACF451832-102
ACF451832-681
ACF451832-471
ACF451832-331
ACF451832-221
ACF451832-151
ACF451832-101
ACF451832-680
ACF451832-470
ACF451832-330
ACF451832-220
25dB attenuation
frequency range
(MHz)
7 to 60
9 to 65
11 to 70
15 to 75
20 to 85
25 to 90
35 to 100
40 to 110
50 to 130
65 to 150
75 to 160
95 to 180
115 to 205
150 to 250
190 to 290
235 to 335
295 to 395
360 to 460
450 to 550
550 to 650
Rated voltage Edc
(V)max.
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
Rated current
(mA)max.
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
DC resistance
(Ω)max.
[Terminal No.1 to 3]
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
Insulation resistance
(MΩ)min.
[Terminal No.1 to 2/No.2 to 3]
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
TYPICAL ELECTRICAL CHARACTERISTICS
ATTENUATION vs. FREQUENCY CHARACTERISTICS
0
10
Attenuation(dB)
20
30
40
50
60
22 15 10 68 47
33
22
3 3 3 2 2
2
2
33
3
MEASURING CIRCUIT
S.G.
50Ω
50Ω
ACF Series
L.M.
10
0
22
0
330
680
47
1
10 1
151
22
1
47
2
33
1
1
68
2
15
1
3
10
30
100
Frequency (MHz)
300
1000
• All specifications are subject to change without notice.
005-01 / 20080806 / e9613_acf.fm
Microcontroller MCU
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