BLM21AG601SN1

Manufacturer Part NumberBLM21AG601SN1
ManufacturerMurata
BLM21AG601SN1 datasheet
 


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Page 78/163:

Effect of Noise Suppression by

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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
!Effect of Noise Suppression by NFR21G
The NFR21G is effective even if ground line is not stable
enough due to its distributed constant circuit structure.
With Stable Ground Line
Type of Filter
Noise Level without Filter
Filter Mounting Condition
Standard Type Chip EMIFILr
(100pF)
Filter Mounting Condition
NFR21GD4701012
With Poor Ground Line
Type of Filter
Noise Level without Filter
Filter Mounting Condition
Standard Type Chip EMIFILr
(100pF)
Filter Mounting Condition
NFR21GD4701012
Noise Suppression Effect of NFR21G Series
[Testing Circuit]
HCU04
10MHz
EMI Suppression Effect
60
50
40
30
20
10
30
84
138
192
246
300
Frequency [MHz]
60
50
40
30
20
10
30
84
138
192
246
300
Frequency [MHz]
60
50
40
30
20
10
30
84
138
192
246
300
Frequency [MHz]
EMI Suppression Effect
60
50
40
30
20
10
30
84
138
192
246
300
Frequency [MHz]
60
50
40
30
20
10
30
84
138
192
246
300
Frequency [MHz]
60
50
40
30
20
10
30
84
138
192
246
300
Frequency [MHz]
C31E9.pdf 03.3.12
HC04
Filter
HC00
15cm
Signal Pattern
Description
Filter
Signal line
Ground pattern
Thru-hole
(connection ground pattern
with ground plane)
Whole surface (back side)
ground plane
The standard type chip EMIFILr is effective on stable
ground lines.
The NFR21G has some advantages to standard type
EMIFILr on stable ground lines.
Description
Filter
Signal line
Ground pattern
Without ground plane
The standard type EMIFILr loses efficiency on poor
ground lines.
The NFR21G is effective even on poor ground lines
because of its distributed constant circuit structure and
unique system to limit rush current.
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