• All specifications are subject to change without notice.
• 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.
Common Mode Filters
For high-speed differential signal line/general signal line
ACM series
Type:
Issue date:
ACM2012 [0805 inch]*
ACM2520 [1008 inch]
* Dimensions Code [EIA]
June 2012
(1/3)
001-04 / 20120610 / e9712_acm.fm
• All specifications are subject to change without notice.
Common Mode Filters
For High-speed Differential Signal Line / General Signal Line
ACM Series ACM2012, 2520
FEATURES
• Although greatly miniaturized, this wire-wound chip-type filter
maintains the characteristics needed for a common mode filter.
Common mode impedance is 1000 [at 100MHz], so this filter is
greatly effective in supporting noise.
• Almost no affect upon even high speed signals since differential
mode impedance is kept low.
• This series includes both 2-line and 3-line types. They are used
for various types of circuits and noise.
APPLICATIONS
• Used for radiation noise suppression for any electronic devices.
• Used to counter common mode noise affecting signals within
high-speed lines.
• USB line for personal computers and peripheral equipment.
• IEEE1394 line for personal computers, DVC, STB, etc.
• LVDS, panel link line for liquid crystal display panels.
TEMPERATURE RANGES
PACKAGING STYLE AND QUANTITIES
PRODUCT IDENTIFICATION
(1) Series name
(2) Dimensions LW
2012: 2.01.2mm
(3) Impedance[at 100MHz]
900: 90
(4) Number of line
2P: 2-line
3P: 3-line
(5) Packaging style
T: ø180mm reel taping
TL: ø330mm reel taping
(6) TDK internal code
RECOMMENDED SOLDERING CONDITIONS
RECOMMENDED TEMPERATURE PROFILE
FOR LEAD-FREE SOLDER
REFLOW PROFILE FOR SOLDER HEAT RESISTANCE
Conformity to RoHS Directive
Operating –40 to +85°C
Storage(After mount) –40 to +85°C
Packaging style Type Reel Quantity
Taping
ACM2012 ø180mm 2000 pieces/reel
ø330mm 10000 pieces/reel
ACM2520 ø180mm 2000 pieces/reel
ø330mm 10000 pieces/reel
ACM 2012 - 900 - 2P - T
(1) (2) (3) (4) (5) (6)
150˚C
180˚C
Peak 245˚C max.
230˚C
60 to 120s 10 to 30s
Natural
cooling
Time(s)
150˚C
180˚C
Peak 260˚C max.
230˚C
60 to 120s 40s max.
Natural
cooling
Time(s)
• 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.
(2/3)
001-04 / 20120610 / e9712_acm.fm
• All specifications are subject to change without notice.
SHAPES AND DIMENSIONS/CIRCUIT DIAGRAMS/RECOMMENDED PC BOARD PATTERNS
2-LINE TYPE
ACM2012-2P ACM2520-2P
3-LINE TYPE
ACM2520-3P
ELECTRICAL CHARACTERISTICS
2.0±0.2
1.2 ±0.21.3max.
0.5 0.3
0.05
0.3
Ferrite
Termination
Wires Termination
1
2
4
3
0.8
1.2
0.4
0.4
1.1 0.75
0.75
0.4
0.4
0.4
Dimensions in mm
1
2
4
3
2.5±0.2
2.0±0.21.2±0.1
1.30
0.85
1.6
0.45
0.35
0.45
1.5 0.8
0.8
0.40
1.3
Dimensions in mm
Part No. Impedance
()typ.[100MHz]
DC resistance
()max.[per 1 line]
Rated voltage
Edc(V)max.
Rated current
Idc(A)max.
2-LINE
ACM2012-900-2P 90 0.19 50 0.4
ACM2012-121-2P 120 0.22 50 0.37
ACM2012-201-2P 200 0.25 50 0.35
ACM2012-361-2P 360 0.5 50 0.22
ACM2520-301-2P 300 0.35 20 0.4
ACM2520-451-2P 450 0.4 20 0.35
ACM2520-601-2P 600 0.45 20 0.3
ACM2520-102-2P 1000 0.9 20 0.2
3-LINE
ACM2520-801-3P 800 1.6 20 0.15
2.5±0.2
2.0±0.2
1.2±0.1
1.3=P0.65×2
0.85
1.6
0.45
0.3
0.45
Ferrite
Wires Electrode
1
2
3
6
5
4
3
2
1
4
5
6
1.5 0.8
0.8
0.35
Dimensions in mm
1.3=P0.65×2
1
2
6
5
34
(3/3)
001-04 / 20120610 / e9712_acm.fm
• All specifications are subject to change without notice.
TYPICAL ELECTRICAL CHARACTERISTICS
IMPEDANCE vs. FREQUENCY CHARACTERISTICS
2-LINE
ACM2012-900-2P ACM2012-121-2P ACM2012-201-2P ACM2012-361-2P
ACM2520-301-2P ACM2520-451-2P ACM2520-601-2P ACM2520-102-2P
3-LINE
ACM2520-801-3P
MEASURING CIRCUITS
2-LINE 3-LINE
10001 10 100 1000
10000
1000
100
1
10
Impedance(Ω)
Frequency(MHz)
Differential
mode
Common mode
10001 10 100
10000
1000
100
1
10
Impedance(Ω)
Differential
mode
Common mode
Frequency(MHz)
10001 10 100
10000
1000
100
1
10
Impedance(Ω)
Differential
mode
Common mode
Frequency(MHz)
1000
Common-mode
1 10 100 1000
10000
1000
100
1
10
Impedance(Ω)
Differential
mode
Frequency(MHz)
1
10001 10 100
10000
1000
100
10
Impedance(Ω)
Frequency(MHz)
Differential
mode
Common mode
1 10 100 1000
10000
1000
100
1
10
Impedance(Ω)
Differential
mode
Common mode
Frequency(MHz)
1 10 100 1000
10000
1000
100
1
10
Impedance(Ω)
Differential
mode
Common mode
Frequency(MHz)
1 10 100 1000
10000
1000
100
1
10
Impedance(Ω)
Frequency(MHz)
Differential
mode
Common mode
1 10 100 1000
10000
1000
100
1
10
Impedance(Ω)
Frequency(MHz)
Differential
mode
Common mode
HP4291A
Differential mode
HP4291A
Common mode
HP4291A
Common mode
HP4291A
Differential mode