BLM21AG601SN1

Manufacturer Part NumberBLM21AG601SN1
ManufacturerMurata
BLM21AG601SN1 datasheet
 
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Page 124/163:

Noise Absorption Effect of EMIGUARDr

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!Note
• Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this PDF catalog to prevent smoking and/or burning, etc.
!Note
This catalog has only typical specifications. Therefore, you are requested to approve our product specifications or to transact the approval sheet for product specificaions before ordering.
• This catalog 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.
EMI Suppression Effect
Continued from the preceding page.
!Noise Absorption Effect of EMIGUARDr
Type of Filter
without EMIGUARD
r
r
with EMIGUARD
D
223S
12-22
!Comparative Data
1. Absorption of quick-rising, high-frequency noise (10ns/div, 100V/div)
Type of Filter
without Filters
Conventional varistor
2-terminal capacitor
(with varistor function)
VFS9V
Noise Suppression Effect of VFR/VFS Series
EMI Suppression Effect
: 200V/div
: 10ns/div
100
90
80
20
10
0%
: 200V/div
: 10ns/div
100
90
80
20
10
0%
EMI Suppression Effect
50ns
Noise wave applied
100
90
80
20
1 1 0 0
0%
100
90
80
20
1 1 0 0
0%
100
90
80
20
1 1 0 0
0%
C31E9.pdf 03.3.12
Description
Waveform when EMIGUARDr is not
used.
(Surge from a noise simulator)
Waveform after the noise passed
through EMIGUARDr. Little noise is
recorded.
Description
As with the 2-terminal capacitor
The 2-terminal capacitor is influenced
by lead line inductance, leaving behind
some of the rising and falling edges.
The residual noise can cause the
system to malfunction.
The 3-terminal structure eliminates
most of the lead line inductance. This
allows the VFS9V to completely absorb
the rising and falling edges of the
applied pulses.
Continued on the following page.
123
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