Noise Suppression Products/EMI Suppression Filters > Chip EMIFILr Inductor Type > Chip Ferrite Beads
Data Sheet
1
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.
I Dimension
I Equivalent Circuit
0.85±0.2
0.5±0.2
1.25±0.2
2.0±0.2
(Resistance element becomes dominant
at high frequencies.)
EIA CODE : 0805
(in mm)
I Packaging
Code
Packaging
Minimum Quantity
D
180mm Paper Tape
4000
J
330mm Paper Tape
10000
B
Bulk(Bag)
1000
I Rated Value (p: packaging code)
Impedance
(at 100MHz/20°C)
Impedance
(at 1GHz/20°C)
Rated Current
DC Resistance(max.)
Operating
Temperature Range
Number of Circuits
BLM21AJ401SN1p
400ohm±25%
-
200mA
0.85ohm
-55°C to +125°C
1
BLM21AJ601SN1p
600ohm±25%
-
200mA
1.10ohm
-55°C to +125°C
1
BLM21AH102SN1p
1000ohm±25%
-
200mA
0.45ohm
-55°C to +85°C
1
Part Number
I Impedance-Frequency Characteristics
I Impedance-Frequency Characteristics
BLM21AJ401SN1
BLM21AJ601SN1
800
500
400
300
Impedance (Ω)
Impedance (ohm)
600
Z
R
200
Z
R
400
200
X
100
X
0
0
1
10
100
1000
1
10
Frequency (MHz)
100
1000
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.
2007.11.1
http://www.murata.com/
