(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.
C50E.pdf
Aug.28,2008
CONTENTS
1
EMIFILr and "EMIFIL" in this catalog are
the trademarks of Murata Manufacturing Co., Ltd.
Product Guide/Effective Frequency Range
1
Chip Ferrite Beads
Part Numbering
BLM15A/18A/21A/31A
BLM15B/18B/21B
Specifications and Test Methods
4
12
BLM18P/21P/31P/41P
For GHz Range Noise Suppression BLM18H/18E
25
33
2
3
2
38
3
2
Chip EMIFILr
Part Numbering
Chip EMIFILr Capacitor Type NFM21H Series
Specifications and Test Methods
42
43
4
44
47
48
Chip EMIFILr LC Combined Type for Large Current NFE61H Series
Specifications and Test Methods
3
Chip Common Mode Choke Coils
Part Numbering
Chip Common Mode Choke Coil DLW31S/43S Series
Specifications and Test Methods
50
51
54
4
Block Type EMIFILr
Block Type EMIFILr SMD Type BNX024H/025H Series
Block Type EMIFILr Lead Type BNX012H Series
Specifications and Test Methods
57
58
60
64
67
76
78
82
87
!Caution/Notice
Soldering and Mounting
Package
Design Kits
Outlines of Major Noise Regulation Standards
Principles of Noise Suppression by DC EMIFILr
!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.
C50E.pdf
Aug.28,2008
Product Guide/Effective Frequency Range
Product Guide
Type
Inductor
Type
Standard
Series
BLM15A
BLM18A
BLM21A
BLM31A
For High
Speed Signals
BLM15B
BLM18B
BLM21B
For High
Current
BLM18P
BLM21P
BLM31P
BLM41P
For GHz
Range
Noise
Suppression
BLM18HG
BLM18HD
BLM18EG
Capacitor
Type
Standard
Type
T Filter for
High Current
Chip Common Mode
Choke Coils
NFM21H
NFE61H
DLW31S
DLW43S
Block Type EMIFILr
BNX024H/025H
BNX012H
Dimensions
(mm)
1.0
0.5
1.6
0.8
2.0
1.25
3.2
1.6
1.0
0.5
1.6
0.8
2.0
1.25
1.6
0.8
2.0
1.25
3.2
1.6
4.5
1.6
1.6
0.8
1.6
0.8
1.6
0.8
2.0
1.25
6.8
1.6
3.2
1.6
4.5
3.2
Effective Frequency Range
10kHz 100kHz 1MHz 10MHz100MHz 1GHz 10GHz
EIA Code
0402
0603
0805
1206
0402
0603
0805
0603
0805
1206
1806
0603
0603
0603
0805
2706
1206
1812
2
!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.
C50E.pdf
Aug.28,2008
On-Board Type (DC) EMI Suppression Filters (EMIFILr) for Automotive
Chip Ferrite Beads
Part Numbering
1
Chip Ferrite Beads for Automotive
(Part Number)
qProduct
ID
Product ID
BL
wType
Code
M
eDimensions
(LgW)
Code
15
18
21
31
41
Dimensions (LgW)
1.0g0.5mm
1.6g0.8mm
2.0g1.25mm
3.2g1.6mm
4.5g1.6mm
EIA
0402
0603
0805
1206
1806
iNumber
of Circuits
rCharacteristics/Applications
Code
*1
AG
AJ
BA
BB
BD
PG
HG
EG
HD
for Power Supplies
for GHz Band General Use
for GHz Band General Use
(Low DC Resistance Type)
for GHz Band High-speed Signal Lines
BLM18
for High-speed Signal Lines
Characteristics/Applications
for General Use
Series
BLM15/18/21/31
BLM18
BLM15/18/21
BLM18/21/31/41
Code
1
Number of Circuits
1 Circuit
uCategory
Code
H
Category
for Automotive
Type
Monolithic Type
yElectrode
Expressed by a letter.
Ex.)
Code
S/T
W
Electrode
Sn Plating
Ag/Pd
Chip Ferrite Beads
BL
q
M
w
18
e
AG
r
102
t
S
H
1 D
tImpedance
Expressed by three figures. The unit is in ohm (Ω). The first and
second figures are significant digits, and the third figure
expresses the number of zeros which follow the two figures.
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