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1
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
On-Board Type (DC) EMI Suppression Filters (EMIFILr)
Chip Ferrite Beads BLM03/BLM15/BLM18/BLM21/BLM31/BLM41 Series
■ Features (BLM_A Series)
The chip ferrite beads BLM series is designed to
function nearly as a resistor at noise frequencies,
which greatly reduces the possibility of resonance and
leaves signal wave forms undistorted.
The BLM series is effective in circuits without stable
ground lines because the BLM series does not need a
connection to ground.
The nickel barrier structure of the external
electrodes provides excellent solder heat resistance.
BLM_A series generates an impedance from the
relatively low frequencies. Therefore BLM_A series is
effective in noise suppression in a wide frequency
range (30MHz to several hundred MHz).
The small size of BLM03A series (0.6x0.3mm) is
suitable for noise suppression in small equipment such
as PA modules for cellular phones.
■ Equivalent Circuit
(Resistance element becomes dominant
at high frequencies.)
BLM03A Series (0201 Size)
(in mm)
0.6±0.03 0.3±0.03
0.3±0.03
0.15±0.05
: electrode
Part Number Impedance
(at 100MHz/20°C)
(ohm)
Rated Current
(mA) DC Resistance (max.)
(ohm)
Operating
Temperature Range
(°C)
BLM03AG100SN1 10 (Typ.) 500 0.1 -55 to +125
BLM03AG700SN1 70 (Typ.) 200 0.5 -55 to +125
BLM03AG121SN1 120 ±25% 200 0.8 -55 to +125
BLM03AG241SN1 240 ±25% 100 1.0 -55 to +125
BLM03AG601SN1 600 ±25% 100 2.0 -55 to +125
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, you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering.
!Note C31E13.pdf 05.3.14
20
1
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
■ Impedance-Frequency (Typical)
BLM03 Series
1000
800
600
400
200
01 10 100 1000 3000
Frequency (MHz)
Impedance (Ω)
BLM03AG601SN1
BLM03AG241SN1
BLM03AG121SN1
BLM03AG700SN1
BLM03AG100SN1
■ Impedance-Frequency Characteristics
BLM03AG100SN1
1 10 100 1000 3000
Frequency (MHz)
Impedance (Ω)
0
5
10
15
20
R
X
Z
BLM03AG700SN1
Frequency (MHz)
Impedance (Ω)
0
20
40
60
80
100
120
R
X
Z
1 10 100 1000 3000
BLM03AG121SN1
0
40
80
120
160
200
1 10 100 1000 3000
Frequency (MHz)
Impedance (Ω)
R
X
Z
BLM03AG241SN1
Frequency (MHz)
Impedance (Ω)
0
100
200
300
400
500
R
X
Z
1 10 100 1000 3000
BLM03AG601SN1
Z
R
X
1000
800
600
400
200
01 10 100 30001000
Frequency (MHz)
Impedance (Ω)
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, you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering.
!Note C31E13.pdf 05.3.14
21
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!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
BLM15A Series (0402 Size)
(in mm)
0.5±0.05
0.5±0.05
1.0±0.05
0.25±0.1
BLM15A Series
Part Number Impedance
(at 100MHz/20°C)
(ohm)
Rated Current
(mA) DC Resistance (max.)
(ohm)
Operating
Temperature Range
(°C)
BLM15AG100SN1 10 (Typ.) 1000 0.05 -55 to +125
BLM15AG700SN1 70 (Typ.) 500 0.15 -55 to +125
BLM15AG121SN1 120 ±25% 500 0.25 -55 to +125
BLM15AG221SN1 220 ±25% 300 0.35 -55 to +125
BLM15AG601SN1 600 ±25% 300 0.6 -55 to +125
BLM15AG102SN1 1000 ±25% 200 1.0 -55 to +125
■ Impedance-Frequency (Typical)
BLM15A Series
0
200
400
600
800
1000
1200
1 10 100 1000
Frequency (MHz)
Impedance (Ω)
BLM15AG102SN1
BLM15AG601SN1
BLM15AG221SN1
BLM15AG121SN1
BLM15AG700SN1
BLM15AG100SN1
■ Impedance-Frequency Characteristics
BLM15AG100SN1
0
5
10
15
20
1 10 100 1000
Frequency (MHz)
Impedance (Ω)
Z
R
X
BLM15AG700SN1
0
20
40
60
80
100
120
1 10 100 1000
Frequency (MHz)
Impedance (Ω)
Z
R
X
Continued on the following page.
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, you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering.
!Note C31E13.pdf 05.3.14
22
1
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
Continued from the preceding page.
■ Impedance-Frequency Characteristics
BLM15AG121SN1
0
50
100
150
200
1 10 100 1000
Frequency (MHz)
Impedance (Ω)
Z
R
X
BLM15AG221SN1
0
100
200
300
400
1 10 100 1000
Frequency (MHz)
Impedance (Ω)
Z
R
X
BLM15AG601SN1
0
200
400
600
800
1 10 100 1000
Frequency (MHz)
Impedance (Ω)
Z
R
X
BLM15AG102SN1
Z
R
X
1200
900
600
300
01 10 100 1000
Impedance (Ω)
Frequency (MHz)
BLM18A Series (0603 Size)
0.4±0.2
1.6±0.15
0.8±0.15
0.8±0.15
(in mm)
BLM18A Series
Part Number Impedance
(at 100MHz/20°C)
(ohm)
Rated Current
(mA) DC Resistance (max.)
(ohm)
Operating
Temperature Range
(°C)
BLM18AG121SN1 120 ±25% 200 0.20 -55 to +125
BLM18AG151SN1 150 ±25% 200 0.25 -55 to +125
BLM18AG221SN1 220 ±25% 200 0.30 -55 to +125
BLM18AG331SN1 330 ±25% 200 0.45 -55 to +125
BLM18AG471SN1 470 ±25% 200 0.50 -55 to +125
BLM18AG601SN1 600 ±25% 200 0.50 -55 to +125
BLM18AG102SN1 1000 ±25% 100 0.70 -55 to +125
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, you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering.
!Note C31E13.pdf 05.3.14
23
1
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
■ Impedance-Frequency (Typical)
BLM18A Series
1200
900
600
300
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
BLM18AG102SN1
BLM18AG601SN1
BLM18AG121SN1
BLM18AG151SN1
BLM18AG221SN1
BLM18AG331SN1
BLM18AG471SN1
■ Impedance-Frequency Characteristics
BLM18AG121SN1
200
150
100
50
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
Z
R
X
BLM18AG151SN1
400
300
200
100
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
Z
R
X
BLM18AG221SN1
400
300
200
100
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
Z
R
X
BLM18AG331SN1
600
450
300
150
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
Z
R
X
BLM18AG471SN1
800
600
400
200
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
Z
R
X
BLM18AG601SN1
800
600
400
200
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
Z
R
X
Continued on the following page.
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, you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering.
!Note C31E13.pdf 05.3.14
24
1
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
Continued from the preceding page.
■ Impedance-Frequency Characteristics
BLM18AG102SN1
1200
900
600
300
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
Z
R
X
BLM21A Series (0805 Size)
2.0±0.2
0.5±0.2
1.25±0.2
EIA CODE : 0805 (in mm)
0.85±0.2
BLM21A Series
Part Number Impedance
(at 100MHz/20°C)
(ohm)
Rated Current
(mA) DC Resistance (max.)
(ohm)
Operating
Temperature Range
(°C)
BLM21AG121SN1 120 ±25% 200 0.15 -55 to +125
BLM21AG151SN1 150 ±25% 200 0.15 -55 to +125
BLM21AG221SN1 220 ±25% 200 0.20 -55 to +125
BLM21AG331SN1 330 ±25% 200 0.25 -55 to +125
BLM21AG471SN1 470 ±25% 200 0.25 -55 to +125
BLM21AG601SN1 600 ±25% 200 0.30 -55 to +125
BLM21AG102SN1 1000 ±25% 200 0.45 -55 to +125
■ Impedance-Frequency (Typical)
BLM21A Series
1200
900
600
300
01 10 100 1000
BLM21AG331SN1
BLM21AG221SN1
BLM21AG601SN1
BLM21AG471SN1
BLM21AG121SN1
BLM21AG102SN1
BLM21AG151SN1
Frequency (MHz)
Impedance (Ω)
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, you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering.
!Note C31E13.pdf 05.3.14
25
1
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
■ Impedance-Frequency Characteristics
BLM21AG121SN1
200
150
100
50
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
R
X
Z
BLM21AG151SN1
200
150
100
50
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
R
X
Z
BLM21AG221SN1
400
300
200
100
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
R
X
Z
BLM21AG331SN1
400
300
200
100
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
R
X
Z
BLM21AG471SN1
800
600
400
200
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
R
X
Z
BLM21AG601SN1
800
600
400
200
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
R
X
Z
BLM21AG102SN1
1200
900
600
300
01 10 100 1000
Frequency (MHz)
Impedance (Ω)
R
X
Z
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, you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering.
!Note C31E13.pdf 05.3.14
26
1
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
BLM15A Series Gold Plating (0402 Size)
■ Features
1. Au plating for wire bonding mounting
2. BLM_A series generates an impedance from the
relatively low frequencies. Therefore BLM_A
series is effective in noise suppression in a
wide frequency range (30MHz to several hundred MHz).
■ Applications
1. Optical transceiver modules
2. Optical pickup modules (in mm)
0.5±0.05
0.5±0.05
1.0±0.05
0.25±0.1
BLM15A Series
(gold plating)
Part Number Impedance
(at 100MHz/20°C)
(ohm)
Rated Current
(mA) DC Resistance (max.)
(ohm)
Operating
Temperature Range
(°C)
BLM15AG601AN1 600 ±25% 300 0.6 -55 to +125
BLM15AG102AN1 1000 ±25% 200 1.0 -55 to +125
■ Impedance-Frequency (Typical)
BLM15A Series (gold plating)
0
200
400
600
800
1000
1200
1 10 100 20001000
Frequency (MHz)
Impedance (Ω)
BLM15AG102AN1
BLM15AG601AN1
■ Impedance-Frequency Characteristics
BLM15AG601AN1
R
X
Z
0
200
400
600
800
1 10 100 20001000
Frequency (MHz)
Impedance (Ω)
BLM15AG102AN1
R
X
Z
0
200
400
600
800
1000
1200
1 10 100 20001000
Frequency (MHz)
Impedance (Ω)
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, you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering.
!Note C31E13.pdf 05.3.14
