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ACM Series
EMC Components
Common Mode Choke Coils for Signal Line
SMD
FEATURES
PRODUCT IDENTIFICATION
• Although greatly miniaturized, this wire-wound chip-type filter
maintains the characteristics needed for a common-mode filter.
Greatly effective in suppressing noise. Common-mode induc-
tance >1000Ω at 100MHz.
ACM 2012 - 900 - 2P - T
(1)
(2)
(3)
(4)
(5)
(1) Series name
(2) Dimensions L×W
2012: 2.0×1.2mm
• Almost no affect upon even high speed signals since differential
mode impedance is kept low.
(3) Impedance[at 100MHz]
900: 90Ω
(4) Number of line
2P:2-line
• This series includes both 2-line type and 3-line types. Used for
various types of circuits and noise. TDK has developed in the
world’s smallest size of 2012 type (L2.0xW1.2mm).
3P:3-line
APPLICATIONS
(5) Packaging style
T: ø180mm reel taping
TL: ø330mm reel taping
• 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.
SHAPES AND DIMENSIONS/CIRCUIT DIAGRAMS/RECOMMENDED PC BOARD PATTERNS
2-LINE
2-LINE
ACM2012-2P
ACM2520U-2P
1
2
4
3
2.0 0.2
1
4
1
2
4
1
2
4
3
3
2
3
Ferrite
2.5 0.2
Wires
0.4
Termination Termination
2
1
3
4
0.75 1.1 0.75
1.2
Dimensions in mm
0.65 1.4 0.65
0.4
1.5
BOTTOM VIEW
Dimensions in mm
0.5
2-LINE
ACM3225-2P
3-LINE
ACM4532-102-3P
1
4
3
1
2
3
6
5
4
1
2
4
3
1
2
3
6
5
4
2
Insulation
resin
3.2 0.2
Insulation
resin
Terminal
electrode
4.5 0.2
Terminal
electrode
Ferrite
Ferrite
0.7
0.7
3
1
1
4.3
Dimensions in mm
1.5
1.6
1.5
Dimensions in mm
1.8
2.3
1.8
Dimensions in mm
• All specifications are subject to change without notice.