SMD Multilayer Common Mode Filter - CMF Series
CMF Series
The CMF series is a type of common mode filter designed and produced
using the multilayer technology. The multilayer construction allows for
excellent noise suppression for signal lines used in high-speed and
high-density digital equipment such as personal computers, facsimiles,
DSC, STB, etc. Both standard series and custom-design products are
available.
Features
Multilayer construction for effective suppression of common mode
noise at high frequency
Excellent solderability
Compact design
Applications
High speed interfaces (IEEE1394, USB2.0, and LVDS) in electronic
devices
PDP, LCD TV, DVD player, PC, Audio player, DSC
Digital audio and video equipment such as PDAs, DVC, CD player,
MD player, etc.
Product Identification
Shape and Dimensions
CMF11
CMF21
Recommended Pattern
Dimensions in mm
TYPE
CMF11
CMF21
A
B
C
D
E
F
G
Dimensions in mm
TYPE
CMF11
CMF21
A
0.50
B
1.30
C
0.80
D
2.60
1.25±0.15 1.00±0.15 0.60±0.15 0.30±0.15 0.20±0.15 0.55±0.15 0.85±0.15
2.00±0.20 1.25±0.20 1.00±0.20 0.35±0.10 0.40±0.10 0.55±0.20 1.20±0.20
0.2~0.3 0.7~1.0 0.7~0.8 1.6~1.9
SMD Multilayer Common Mode Filter - CMF Series
Electrical Characteristics
Part Number
Impedance
(Ω)
CMF11T-670M-N2
CMF11T-900M-N2
67
90
Test
Frequency
(MHz)
100
100
Tolerance
(±%)
20
20
RDC
(Ω)Max
1.35
1.45
Rated Current Rated Voltage
(mA)Max
100
100
(Vdc)Max
10
10
Insulation
Resistance
(MΩ) Min
200
200
When ordering, please specify tolerance and packaging codes
Tolerance: M = ±20%
Packaging: Clear tape and reel {standard}
Z: Agilent E4991A
Rdc (single line): CH502BC HP4338B
Insulation Resistance: Agilent HP4339B
Operating temperature range from -40℃ to +105℃. (Including self - temperature rise )
Test Instruments：Agilent
E4991A Material/Impedance Analyzer
10,000
CMF11T-670M-N2
10,000
CMF11T-900M-N2
IMPEDANCE(Ω)
Common mode
IMPEDANCE(Ω)
1,000
1,000
Common mode
100
100
10
Differencial mode
10
Differential mode
1
1
10
100
1,000
10,000
1
1
10
100
1,000
10,000
FREQUENCY(MHz)
FREQUENCY(MHz)
SMD Multilayer Common Mode Filter - CMF Series
Electrical Characteristics
Part Number
Impedance
(Ω)
CMF21T-670M-N2
CMF21T-900M-N2
CMF21T-121M-N2
67
90
120
Test
Frequency
(MHz)
100
100
100
Tolerance
(±%)
20
20
20
RDC
(Ω)Max
0.80
0.85
0.90
Rated Current Rated Voltage
(mA)Max
400
400
400
(Vdc)Max
30
30
30
Insulation
Resistance
(MΩ) Min
200
200
200
When ordering, please specify tolerance and packaging codes
Tolerance: M = ±20%
Packaging: Clear tape and reel {standard}
Z: Agilent E4991A
Rdc (single line): CH502BC HP4338B
Insulation Resistance: Agilent HP4339B
Operating temperature range from -40℃ to +105℃. (Including self - temperature rise )
Test Instruments：Agilent
E4991A Material/Impedance Analyzer
CMF21T-670M-N2
1,000
1000
CMF21T-900M-N2
IMPEDANCE(Ω)
IMPEDANCE(Ω)
100
Common mode
Common mode
100
10
Differencial mode
10
Differencial mode
1
1
10
100
1,000
10,000
1
1
10
100
1000
10000
FREQUENCY(MHz)
FREQUENCY(MHz)
CMF21T-121M-N2
1,000
IIMPEDANCE(Ω)
100
Common mode
10
Differencial mode
1
1
10
100
1,000
10,000
FREQUENCY(MHz)
SMD Multilayer Common Mode Filter - CMF Series
Packaging Specifications
Tape Dimensions
1.5 +0.1/-0.05
4.0 ± 0.1
2.0 ± 0.05
1.75 ± 0.1
T
F
B
W
K
A
P
Trailer End
Leader End
Blank part(160mm min.)
Blank Compartments with Cover Tape and Leader (330mm min.)
Reel Dimensions
Dimensions in mm
Tape Dimensions
TYPE
A
CMF11
CMF21
1.15
1.45
B
1.50
2.30
T
0.25
0.22
W
8
8
P
4
4
F
3.5
3.5
K
0.72
1.13
A
178
178
B
60
60
C
12
12
D
1.5
1.5
PCS / Reel
4000
3000
Reel Dimensions
Quantity
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