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Noise Suppression Products/EMI Suppression Filters > Chip EMIFILr Inductor Type > Chip Ferrite Beads
Data Sheet
Chip EMIFILr Inductor Type Chip Ferrite Beads
BLM21A Series (0805 Size)
o
For your new designs, alternative parts should be used. These parts should be used only for existing design. Please consult with us for details.
■ Dimension ■ Equivalent Circuit
0.5±0.2
0.85±0.2
1
2.0±0.2
1.25±0.2
EIA CODE : 0805
(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
BLM21AJ401SN1p
BLM21AJ601SN1p
BLM21AH102SN1p
Impedance
(at 100MHz/20°C)
400ohm±25% - 200mA 0.85ohm -55°C to +125°C 1
600ohm±25% - 200mA 1.10ohm -55°C to +125°C 1
1000ohm±25% - 200mA 0.45ohm -55°C to +85°C 1
Impedance
(at 1GHz/20°C)
■ Impedance-Frequency Characteristics
BLM21AJ401SN1
500
(Resistance element becomes dominant
Rated Current DC Resistance(max.)
■ Impedance-Frequency Characteristics
800
at high frequencies.)
Operating
Temperature Range
BLM21AJ601SN1
Number of Circuits
400
300
200
Impedance (ohm)
100
0
1 10 100 1000
Z
R
X
Frequency (MHz)
600
Z
400
Impedance (Ω)
200
0
1 10 100 1000
R
X
Frequency (MHz)
Continued on the following page.
o This data sheet is applied for CHIP FERRITE BEAD used for General Electronics equipment for your design.
!
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.
http://www.murata.com/
2006.11.2
Page 2
Noise Suppression Products/EMI Suppression Filters > Chip EMIFILr Inductor Type > Chip Ferrite Beads
Continued from the preceding page.
■ Impedance-Frequency Characteristics
BLM21AH102SN1
1200
Data Sheet
2
900
600
Impedance (Ω)
300
0
1 10 100 1000
Z
R
X
Frequency (MHz)
■ !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.
!
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.
http://www.murata.com/
2006.11.2
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