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
Applications
Multilayer construction for effective suppression of common mode
High speed interfaces (IEEE1394, USB2.0, and LVDS) in electronic
noise at high frequency
devices
Excellent solderability
PDP, LCD TV, DVD player, PC, Audio player, DSC
Compact design
Digital audio and video equipment such as PDAs, DVC, CD player,
MD player, etc.
Product Identification
Shape and Dimensions
Recommended Pattern
CMF11
CMF21
Dimensions in mm
TYPE
A
Dimensions in mm
B
C
D
E
F
G
TYPE
CMF11
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
CMF11
CMF21
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
CMF21
A
B
C
D
0.2~0.3 0.7~1.0 0.7~0.8 1.6~1.9
0.50
1.30
0.80
2.60
SMD Multilayer Common Mode Filter - CMF Series
Electrical Characteristics
Test
Impedance
Part Number
Frequency
Tolerance
RDC
Rated Current Rated Voltage
Insulation
Resistance
(Ω)
(MHz)
(±%)
(Ω)Max
(mA)Max
(Vdc)Max
(MΩ) Min
CMF11T-670M-N2
67
100
20
1.35
100
10
200
CMF11T-900M-N2
90
100
20
1.45
100
10
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
CMF11T-670M-N2
10,000
1,000
IMPEDANCE(Ω)
1,000
IMPEDANCE(Ω)
CMF11T-900M-N2
10,000
Common mode
100
10
Differencial mode
10
100
FREQUENCY(MHz)
1,000
100
10
Differential mode
1
1
Common mode
10,000
1
1
10
100
FREQUENCY(MHz)
1,000
10,000
SMD Multilayer Common Mode Filter - CMF Series
Electrical Characteristics
Test
Impedance
Part Number
Frequency
Tolerance
RDC
Rated Current Rated Voltage
Insulation
Resistance
(Ω)
(MHz)
(±%)
(Ω)Max
(mA)Max
(Vdc)Max
(MΩ) Min
CMF21T-670M-N2
67
100
20
0.80
400
30
200
CMF21T-900M-N2
90
100
20
0.85
400
30
200
CMF21T-121M-N2
120
100
20
0.90
400
30
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
CMF21T-900M-N2
1000
IMPEDANCE(Ω)
IMPEDANCE(Ω)
1,000
Common mode
100
10
Differencial mode
10
Differencial mode
1
1
1
10
100
1,000
10,000
FREQUENCY(MHz)
CMF21T-121M-N2
Common mode
100
10
Differencial mode
1
1
10
100
FREQUENCY(MHz)
1
10
100
1000
FREQUENCY(MHz)
1,000
IIMPEDANCE(Ω)
Common mode
100
1,000
10,000
10000
SMD Multilayer Common Mode Filter - CMF Series
Packaging Specifications
Tape Dimensions
4.0 ± 0.1
1.5 +0.1/-0.05
T
2.0 ± 0.05
1.75 ± 0.1
F
W
B
K
A
P
Trailer End
Leader End
Blank Compartments with Cover Tape and Leader (330mm min.)
Blank part(160mm min.)
Reel Dimensions
Dimensions in mm
Tape Dimensions
Reel Dimensions
Quantity
TYPE
A
B
T
W
P
F
K
A
B
C
D
PCS / Reel
CMF11
1.15
1.50
0.25
8
4
3.5
0.72
178
60
12
1.5
4000
CMF21
1.45
2.30
0.22
8
4
3.5
1.13
178
60
12
1.5
3000