BLM18SG121TN1D Murata, BLM18SG121TN1D Datasheet - Page 137
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BLM18SG121TN1D
Manufacturer Part Number
BLM18SG121TN1D
Description
EMI/RFI Suppressors & Ferrites 0603 120 OHMS
Manufacturer
Murata
Specifications of BLM18SG121TN1D
Shielding
Unshielded
Test Frequency
100 MHz
Product
Chip Ferrite Beads
Impedance
120 Ohms
Tolerance
25 %
Maximum Dc Current
3000 mAmps
Maximum Dc Resistance
0.025 Ohms
Operating Temperature Range
- 55 C to + 125 C
Package / Case
0603 (1608 metric)
Termination Style
SMD/SMT
Dc Resistance Max
0.025ohm
Dc Current Rating
3A
Ferrite Mounting
SMD
Ferrite Case Style
0603 / 1608
Operating Temperature Min
-55°C
Resistance
0.025ohm
Rohs Compliant
Yes
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:
BLM18SG121TN1D
Manufacturer:
MURATA
Quantity:
400 000
Company:
Part Number:
BLM18SG121TN1D
Manufacturer:
MURATA
Quantity:
240 000
Part Number:
BLM18SG121TN1D
Manufacturer:
MURATA/村田
Quantity:
20 000
Suppression
Example of EMI Suppression
in an Actual Circuit
!Note
(Cut-off frequency 50MHz)
with Conventional LCs
before Filter Mounting
and Noise Spectrum
Solid Type EMI Filter
L: Chip Inductor
C: Chip Capacitor
Conventional Chip
Signal Waveform
Effect
Filter Combined
NFW31S Series
(NFM41CC 470pF)
• 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.
EMI
L
Type of Filter
C
(270pF)
L
NFW31 Series
Signal Waveform 20ns/div
Signal Wave Form
(
1V/div
)
(
20ns/div
100
1V/div
100
100
100
80
60
40
20
80
60
40
20
80
60
40
20
80
60
40
20
0
0
0
0
)
(10:1 Active Probe)
/ EMI Suppression Effect / Description
100
100
Noise Spectrum
100
100
Measuring Circuit
Frequency ( MHz )
Level before
Frequency (MHz)
Level before
Frequency (MHz)
Level before
Frequency (MHz)
filter mounting
filter mounting
filter mounting
10MHz
200
200
74ALS04
200
200
300
300
300
300
400
400
400
400
500
500
500
500
EMI
Suppression Filter
NFW31S's steep attenuation
characteristic means excellent EMI
suppression without waveform
cornering.
3-terminal capacitors suppress
signal frequencies as EMI
frequencies so the signal waveform
is distorted.
Combinations of inductors and
capacitors can yield a steep
attenuation characteristic, but they
require a great deal more mounting
space.
Moreover, at high frequencies the
EMI suppression is less than that
obtained by NFW31S.
Measuring
Point
74ALS00
135
Mar.28,2011
C31E.pdf