
Noise Suppression Products/EMI Suppression Filters > Chip EMIFILr Inductor Type > Chip Ferrite Beads
Data Sheet 1
Chip EMIFILr Inductor Type
BLM18P Series (0603 Size)
■ Dimension ■ Equivalent Circuit
0.4±0.2
0.8±0.15
1.6±0.15
0.8±0.15
(in mm)
■ Packaging
Code Packaging Minimum Quantity
D 180mm Paper Tape 4000
J 330mm Paper Tape 10000
B Bulk(Bag) 1000
■ Rated Value (p: packaging code)
Part Number
BLM18PG300SN1p
BLM18PG330SN1p
BLM18PG600SN1p
BLM18PG121SN1p
BLM18PG181SN1p
BLM18PG221SN1p
BLM18PG331SN1p
BLM18PG471SN1p
Impedance
(at 100MHz/20°C)
30ohm(Typ.) - 1000mA 0.05ohm -55°C to +125°C 1
33ohm±25% - 3000mA 0.025ohm -55°C to +125°C 1
60ohm(Typ.) - 500mA 0.10ohm -55°C to +125°C 1
120ohm±25% - 2000mA 0.05ohm -55°C to +125°C 1
180ohm±25% - 1500mA 0.09ohm -55°C to +125°C 1
220ohm±25% - 1400mA 0.1ohm -55°C to +125°C 1
330ohm±25% - 1200mA 0.15ohm -55°C to +125°C 1
470ohm±25% - 1000mA 0.2ohm -55°C to +125°C 1
Impedance
(at 1GHz/20°C)
(Resistance element becomes dominant
Rated Current DC Resistance(max.)
at high frequencies.)
Operating
Temperature Range
Continued on the following page.
Number of Circuits
o
This data sheet is applied for CHIP FERRITE BEAD used for General Electronics equipment for your design.
http://www.murata.com/
2005.5.16

Noise Suppression Products/EMI Suppression Filters > Chip EMIFILr Inductor Type > Chip Ferrite Beads
Data Sheet 2
Continued from the preceding page.
■ Notice (Rating)
In operating temperatures exceeding +85D, derating of
current is necessary for chip Ferrite Beads for which rated
current is 1200mA or over. Please apply the derating curve
shown in chart according to the operating temperature.
[Derating]
6A
6
5
4A
4
3A
3
2.5A
Derated Current [A]
2A
2
1.5A
1.4A
1.2A
1
1A
■ Z-f Characteristics (Typ.)
BLM18PG300SN1
50
40
30
20
Impedance (Ω)
10
0
1 10 100 1000
Frequency (MHz)
■ Z-f Characteristics (Typ.)
BLM18PG600SN1
100
0
Operating Temperature [D]
85 125
■ Z-f Characteristics(Typ.)
BLM18PG330SN1
60
Z
R
X
45
30
Impedance (Ω)
15
0
1 10 100 1000
Frequency (MHz)
Z
R
X
■ Z-f Characteristics(Typ.)
BLM18PG121SN1
200
80
60
40
Impedance (Ω)
20
0
1 10 100 1000
o
This data sheet is applied for CHIP FERRITE BEAD used for General Electronics equipment for your design.
Frequency (MHz)
Z
R
X
150
100
Impedance (Ω)
50
0
1 10 100 1000
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Z
R
X
Frequency (MHz)
Continued on the following page.
2005.5.16

Continued from the preceding page.
■ Z-f Characteristics(Typ.)
BLM18PG181SN1
280
Noise Suppression Products/EMI Suppression Filters > Chip EMIFILr Inductor Type > Chip Ferrite Beads
Data Sheet 3
■ Z-f characteristics (Typ.)
BLM18PG221SN1
400
210
140
Impedance (Ω)
70
0
1 10 100 1000
Frequency (MHz)
Z
R
X
■ Z-f characteristics (Typ.)
BLM18PG331SN1
600
450
Z
300
Impedance (Ω)
150
0
1 10 100 1000
Frequency (MHz)
R
X
300
200
Impedance (Ω)
100
0
1 10 100 1000
Frequency (MHz)
■ Z-f characteristics (Typ.)
BLM18PG471SN1
800
600
400
Impedance (Ω)
200
0
1 10 100 1000
Frequency (MHz)
Z
R
X
Z
R
X
■ !Caution/Notice
!Caution (Rating)
Do not use products beyond the rated current and
rated voltage as this may create excessive heat
and deteriorate the insulation resistance.
Notice
Solderability of Tin plating termination chip might be
deteriorated when low temperature soldering profile
where peak solder temperature is below the Tin melting
point is used. Please confirm the solderability of Tin
plating termination chip before use.
o
This data sheet is applied for CHIP FERRITE BEAD used for General Electronics equipment for your design.
http://www.murata.com/
2005.5.16

Noise Suppression Products/EMI Suppression Filters > Chip EMIFILr Inductor Type > Chip Ferrite Beads
Data Sheet 4
!
Note:
1. Export Control
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For customers outside Japan
Murata products should not be used or sold for use in the development, production, stockpiling or utilization of any conventional weapons or mass-destructive
weapons (nuclear weapons, chemical or biological weapons, or missiles), or any other weapons.
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For customers in Japan
For products which are controlled items subject to the “Foreign Exchange and Foreign Trade Law” of Japan, the export license specified by the law is required
for export.
2. Please contact our sales representatives or product engineers before using the products in this data sheet for the applications listed below, which require
especially high reliability for the prevention of defects which might directly damage to a third party's life, body or property, or when one of our products is
intended for use in applications other than those specified in this data sheet.
Aircraft equipment w Aerospace equipment
q
Undersea equipment r Power plant equipment
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Medical equipment y Transportation equipment (vehicles, trains, ships, etc.)
t
Traffic signal equipment i Disaster prevention / crime prevention equipment
u
Data-processing equipment !0 Application of similar complexity and/or reliability requirements to the applications listed in the above
o
3. They are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers
before ordering. If there are any questions, please contact our sales representatives or product engineers.
4. This data sheet 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. Especially, please read rating and !CAUTION (for storage, operating, rating, soldering,
mounting and handling) in them to prevent smoking and/or burning, etc.
5. You are able to read a detailed specification in the website of Search Engine (http://search.murata.co.jp/) or catalog library (http://www.murata.com/catalog/)
before to require our product specification or to transact the approval sheet for product specification.
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of our and/or a third party's intellectual property rights and other related rights in consideration of your use of our products and/or information described or
contained in our data sheets. In this connection, no representation shall be made to the effect that any third parties are authorized to use the right mentioned
above under licenses without our consent.
7. No ozone depleting substances (ODS) under the Montreal Protocol are used in our manufacturing process.
o
This data sheet is applied for CHIP FERRITE BEAD used for General Electronics equipment for your design.
>
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2005.5.16
http://www.murata.com/