(for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
!Note
•Please read rating and
!CAUTION
(for storage, operating, rating, soldering, mounting and handling) in this PDF catalog to prevent smoking and/or burning, etc.
•This catalog has only typical specifications. Therefore,thereareno space for detailed specifications. Therefore, please approve our productsheet for product specificaions approval sheet for product specifications before ordering.
This catalog has only typical specifications because you is requested to approve our product specifications or to transact the approval specifications or transact the before ordering.
C31E9.pdf 03.3.12
On-Board Type (DC) EMI Suppression Filters (EMIFILr)
Chip Ferrite Beads BLM03/BLM15/BLM18/BLM21/BLM31/BLM41 Series
s
Features (BLM_A Series)
The chip ferrite bead BLM series comprises ferrite
beads in the shape of a chip. This ferrite bead
generates a high impedance which at high frequency
mainly consists of a resistance element. The BLM
series is effective in circuits without stable ground
relatively low frequencies. Therefore BLM_A series is
effective in noise suppression in a wide frequency
range (30MHz - several hundred MHz).
The small size of BLM03 series (0.6x0.3mm) is
suitable for noise suppression in small equipment
such as PA modules for cellular phones.
1
s
Equivalent Circuit
(Resistance element becomes dominant
at high frequencies.)
BLM03A Series (0201 Size)
0.6±0.03
0.3±0.03
0.3±0.03
0.15±0.05
: electrode
(in mm)
Part Number
BLM03AG100SN1
BLM03AG700SN1
BLM03AG121SN1
Impedance
(at 100MHz, 20 degree C)
(ohm)
10 (Typ.)
70 (Typ.)
120
±25%
Rated Current
(mA)
500
200
200
DC Resistance (max.)
(ohm)
0.1
0.5
0.8
Operating
Temperature Range
(°C)
-55 to 125
-55 to 125
-55 to 125
18
Please read rating and
!CAUTION
(for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
!Note
•Please read rating and
!CAUTION
(for storage, operating, rating, soldering, mounting and handling) in this PDF catalog to prevent smoking and/or burning, etc.
•This catalog has only typical specifications. Therefore,thereareno space for detailed specifications. Therefore, please approve our productsheet for product specificaions approval sheet for product specifications before ordering.
This catalog has only typical specifications because you is requested to approve our product specifications or to transact the approval specifications or transact the before ordering.
C31E9.pdf 03.3.12
s
Impedance-Frequency (Typical)
BLM03 Series
300
250
200
Impedance (Ω)
BLM03AG121SN1
150
1
100
BLM03AG700SN1
50
BLM03AG100SN1
0
1
10
100
Frequency (MHz)
1000 2000
s
Impedance-Frequency Characteristics
BLM03AG100SN1
20
150
BLM03AG700SN1
120
15
Impedance (Ω)
Impedance (Ω)
Z
10
R
90
Z
R
60
5
30
X
0
X
1
10
100
Frequency (MHz)
1000 2000
0
1
10
100
Frequency (MHz)
1000 2000
BLM03AG121SN1
300
250
200
Impedance (Ω)
150
Z
R
100
X
50
0
1
10
100
Frequency (MHz)
1000 2000
BLM15A Series (0402 Size)
0.25±0.1
1.0±0.05
0.5±0.05
BLM15A Series
(in mm)
19
0.5±0.05
Please read rating and
!CAUTION
(for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
!Note
•Please read rating and
!CAUTION
(for storage, operating, rating, soldering, mounting and handling) in this PDF catalog to prevent smoking and/or burning, etc.
•This catalog has only typical specifications. Therefore,thereareno space for detailed specifications. Therefore, please approve our productsheet for product specificaions approval sheet for product specifications before ordering.
This catalog has only typical specifications because you is requested to approve our product specifications or to transact the approval specifications or transact the before ordering.
C31E9.pdf 03.3.12
Part Number
BLM15AG100SN1
BLM15AG700SN1
BLM15AG121SN1
BLM15AG221SN1
BLM15AG601SN1
BLM15AG102SN1
Impedance
(at 100MHz, 20 degree C)
(ohm)
10 (Typ.)
70 (Typ.)
120
±25%
220
±25%
600
±25%
1000
±25%
Rated Current
(mA)
1000
500
500
300
300
200
DC Resistance (max.)
(ohm)
0.05
0.15
0.25
0.35
0.6
1.0
Operating
Temperature Range
(°C)
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
1
s
Impedance-Frequency (Typical)
BLM15A Series
1200
BLM15AG102SN1
1000
Impedance (ohm)
800
BLM15AG601SN1
600
BLM15AG221SN1
BLM15AG121SN1
400
BLM15AG700SN1
BLM15AG100SN1
200
0
1
10
Frequency (MHz)
100
1000
s
Impedance-Frequency Characteristics
BLM15AG100SN1
20
120
BLM15AG700SN1
100
15
Impedance (ohm)
Impedance (ohm)
Z
R
10
80
Z
R
60
40
5
X
20
X
0
1
10
Frequency (MHz)
100
1000
0
1
10
Frequency (MHz)
100
1000
BLM15AG121SN1
200
400
BLM15AG221SN1
150
Impedance (ohm)
Impedance (ohm)
Z
R
300
Z
R
100
200
50
X
100
X
0
1
10
Frequency (MHz)
100
1000
0
1
10
Frequency (MHz)
100
1000
Continued on the following page.
20
Please read rating and
!CAUTION
(for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
!Note
•Please read rating and
!CAUTION
(for storage, operating, rating, soldering, mounting and handling) in this PDF catalog to prevent smoking and/or burning, etc.
•This catalog has only typical specifications. Therefore,thereareno space for detailed specifications. Therefore, please approve our productsheet for product specificaions approval sheet for product specifications before ordering.
This catalog has only typical specifications because you is requested to approve our product specifications or to transact the approval specifications or transact the before ordering.
C31E9.pdf 03.3.12
Continued from the preceding page.
s
Impedance-Frequency Characteristics
BLM15AG601SN1
800
1200
Z
900
Z
Impedance (Ω)
R
600
R
400
BLM15AG102SN1
600
Impedance (Ω)
1
300
X
200
X
0
1
10
100
Frequency (MHz)
1000
0
1
10
100
Frequency (MHz)
1000
BLM18A Series (0603 Size)
0.4±0.2
1.6±0.15
0.8±0.15
BLM18A Series
(in mm)
Part Number
BLM18AG121SN1
BLM18AG151SN1
BLM18AG221SN1
BLM18AG331SN1
BLM18AG471SN1
BLM18AG601SN1
BLM18AG102SN1
Impedance
(at 100MHz, 20 degree C)
(ohm)
120
±25%
150
±25%
220
±25%
330
±25%
470
±25%
600
±25%
1000
±25%
Rated Current
(mA)
200
200
200
200
200
200
100
DC Resistance (max.)
(ohm)
0.20
0.25
0.30
0.45
0.50
0.50
0.70
Operating
Temperature Range
(°C)
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
s
Impedance-Frequency (Typical)
BLM18A Series
1200
BLM18AG102SN1
BLM18AG601SN1
900
Impedance (Ω)
BLM18AG471SN1
BLM18AG331SN1
600
BLM18AG221SN1
BLM18AG151SN1
BLM18AG121SN1
300
0
1
10
100
Frequency (MHz)
1000
21
0.8±0.15
Please read rating and
!CAUTION
(for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
!Note
•Please read rating and
!CAUTION
(for storage, operating, rating, soldering, mounting and handling) in this PDF catalog to prevent smoking and/or burning, etc.
•This catalog has only typical specifications. Therefore,thereareno space for detailed specifications. Therefore, please approve our productsheet for product specificaions approval sheet for product specifications before ordering.
This catalog has only typical specifications because you is requested to approve our product specifications or to transact the approval specifications or transact the before ordering.
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