http://www.murata.com/
Data Sheet
!
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications 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.
2. This datasheet 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.
1
o This data sheet is applied for CHIP FERRITE BEAD used for General Electronics equipment for your design.
2011.5.12
Noise Suppression Products/EMI Suppression Filters > EMIFILr (Inductor type) > Chip Ferrite Bead
0.4±0.2
1.6±0.15 0.8±0.15
0.8±0.15
(in mm)
: Electrode
(Resistance element becomes dominant
at high frequencies.)
EMIFILr (Inductor type) Chip Ferrite Bead
BLM18R Series (0603 Size)
■ Dimensions ■ Equivalent Circuit
■ Packaging
Code Packaging Minimum Quantity
D180mm Paper Tape 4000
J330mm Paper Tape 10000
BBulk(Bag) 1000
■ Rated Value (p: packaging code)
Part Number Impedance
(at 100MHz/20°C) Impedance
(at 1GHz/20°C) Rated Current DC Resistance Operating
Temperature Range
BLM18RK121SN1p120ohm ±25% - 200mA 0.25ohm max. -55 to +125°C
BLM18RK221SN1p220ohm ±25% - 200mA 0.30ohm max. -55 to +125°C
BLM18RK471SN1p470ohm ±25% - 200mA 0.50ohm max. -55 to +125°C
BLM18RK601SN1p600ohm ±25% - 200mA 0.60ohm max. -55 to +125°C
BLM18RK102SN1p1000ohm ±25% - 200mA 0.80ohm max. -55 to +125°C
Number of Circuits: 1
Continued on the following page.
Continued from the preceding page.
http://www.murata.com/
Data Sheet
!
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications 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.
2. This datasheet 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.
2
o This data sheet is applied for CHIP FERRITE BEAD used for General Electronics equipment for your design.
2011.5.12
Impedance (Ω)
Frequency (MHz)
1 10 100 1000 3000
1200
900
600
300
0
BLM18RK102SN1
BLM18RK601SN1
BLM18RK471SN1
BLM18RK221SN1
BLM18RK121SN1
1 10 100 1000 3000
Frequency (MHz)
Impedance (Ω)
200
150
100
50
0
Z
R
X
1 10 100 1000 3000
Frequency (MHz)
Impedance (Ω)
0
100
200
300
Z
R
X
1 10 100 1000 3000
Frequency (MHz)
Impedance (Ω)
600
450
300
150
0
Z
R
X
1 10 100 1000 3000
Frequency (MHz)
Impedance (Ω)
X
Z
R
0
200
400
600
800
1 10 100 1000 3000
Frequency (MHz)
Impedance (Ω)
0
200
400
600
800
1000
1200
X
Z
R
Noise Suppression Products/EMI Suppression Filters > EMIFILr (Inductor type) > Chip Ferrite Bead
■ Impedance-Frequency Characteristics (Main Items) ■ Impedance-Frequency Characteristics
BLM18RK121SN1
■ Impedance-Frequency Characteristics
BLM18RK221SN1
■ Impedance-Frequency Characteristics
BLM18RK471SN1
■ Impedance-Frequency Characteristics
BLM18RK601SN1
■ Impedance-Frequency Characteristics
BLM18RK102SN1
Continued on the following page.
Continued from the preceding page.
http://www.murata.com/
Data Sheet
!
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications 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.
2. This datasheet 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.
3
o This data sheet is applied for CHIP FERRITE BEAD used for General Electronics equipment for your design.
2011.5.12
Noise Suppression Products/EMI Suppression Filters > EMIFILr (Inductor type) > Chip Ferrite Bead
!Caution (Rating)
Do not use products beyond the rated current 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.
■ !Caution/Notice
