BLM21BB121SN1D Murata, BLM21BB121SN1D Datasheet - Page 5
![EMI/RFI Suppressors & Ferrites 0805 120 OHM](/photos/16/33/163388/lpmuratablm_sml.jpg)
BLM21BB121SN1D
Manufacturer Part Number
BLM21BB121SN1D
Description
EMI/RFI Suppressors & Ferrites 0805 120 OHM
Manufacturer
Murata
Series
BLM Br
Specifications of BLM21BB121SN1D
Shielding
Unshielded
Test Frequency
100 MHz
Product
Chip Ferrite Beads
Impedance
120 Ohms
Tolerance
25 %
Maximum Dc Current
200 mAmps
Maximum Dc Resistance
0.25 Ohms
Operating Temperature Range
- 55 C to + 125 C
Package / Case
0805 (2012 metric)
Termination Style
SMD/SMT
Dc Resistance Max
0.25ohm
Dc Current Rating
200mA
Ferrite Mounting
SMD
Ferrite Case Style
0805
Inductor Case Style
0805
No. Of Pins
2
Core Material
Ferrite
Rohs Compliant
Yes
Operating Temperature Min
-55°C
Resistance
0.25ohm
Operating Temperature Max
+125°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
BLM21BB121SN1D
Manufacturer:
MURATA
Quantity:
240 000
Part Number:
BLM21BB121SN1D
Manufacturer:
MURATA/村田
Quantity:
20 000
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- Download datasheet (9Mb)
oAdvantages to Use Common Mode Choke Coils
!Note
1. Great Effect for Common Mode Noise
2. Possible to Suppress Noise with Less Affect of Ultra High Speed Signal
3. Less Magnetic Saturation by Current
Differential mode inductors work as a half
impedance for common mode noise.
Common Mode Choke Coils are effective for
common mode noise.
Common Mode Choke Coils can suppress Noise with less affect of Signal,
even if the frequency range of Signal and Noise are same, because of they
separate each conductive mode of current.
Common Mode Choke Coils are effective for noise suppression of DC
power lines, due to their less magnetic saturation at high power current,
that comes from their construction of cancelling magnetic flux of
differential mode current at each coils.
• 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 review our product specifications or consult the approval sheet for product specifications before ordering.
(Differential mode)
Signal spectrum
(Common mode)
Noise spectrum
Frequency
Used differential mode
inductor
Used Common Mode
Choke Coil
Stray
capacitance
Noise source
N
Ex) 2pcs of differential mode inductor
Selection Guide for Noise Suppression Filter
Selection Guide for Noise Suppression Filter
Reference ground surface
~
Frequency
Frequency
Z
Z
Signal is attenuated
with Noise suppression
Noise is suppressed
without less affect of
Signal
Stray
capacitance
3
Mar.28,2011
C31E.pdf
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