Noise Suppression Products/EMI Suppression Filters > Ferrite Cores for EMI Suppression > Multi-hole Cores
Data Sheet
1
Ferrite Cores for EMI Suppression
FSMA Series
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Appearance
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Dim. illustration
B
Multi-hole Cores
A
FSMA Type for Balun Transfomer
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Features
1. Easy to use and excellent noise suppression. Data
lines can be passed through core or wound around
core several times.
2. Effective for suppressing noise at high frequencies
Murata can also supply Resin coated core
which Is shatter-proof with continuous
noise removal functionality.
Please ask us about the resin coated core,
if necessary.
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Applications
1. For Data-processing eguipment
(PC, PDA, Game machine, etc.),
and peripheral equipments
(Printer, FDD, HDD, Display, etc.)
2. For digital equipments
(DSC, DVC, DVD recorder, Mobile phone,
Digital audio, Optical drive, PDP/LCD/FED,
facsimile, etc.)
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Rated Value
Part Number
FSMA050020RLB00B
FSMA050020RTB00B
FSMA072020RLB00B
A : Outer Dimension
5.2mm±0.3mm
5.2mm±0.3mm
6.5mm±0.3mm
B : Inner Dimension
1.3mm±0.2mm
1.3mm±0.2mm
1.10mm±0.15mm
H : Length Dimension
2.0mm±0.3mm
2.0mm±0.3mm
2.0mm±0.2mm
E : Width Dimension
2.5mm±0.3mm
2.5mm±0.3mm
3.0mm±0.2mm
Impedance at 100MHz
21ohm(typ.)
20ohm(typ.)
23ohm(typ.)
Continued on the following page.
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E
Note
-
-
-
!
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.
2010.7.8
http://www.murata.com/
Noise Suppression Products/EMI Suppression Filters > Ferrite Cores for EMI Suppression > Multi-hole Cores
Data Sheet
Continued from the preceding page.
2
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Impedance Frequency Characteristics
FSMA050
1000
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Impedance Frequency Characteristics
FSMA072
1000
Impedance (Ω)
FSMA050020RT type
10
FSMA050020RL type
Impedance (Ω)
100
100
10
FSMA072020RL type
1
1
10
100
Frequency (MHz)
1000
1
1
10
100
Frequency (MHz)
1000
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Cases to Use
Ring Type
(FSRB Type)
Beads Type
(FSRH Type)
Core for Flat Cable Type
(FSRC Type)
Continued on the following page.
!
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.
2010.7.8
http://www.murata.com/
Noise Suppression Products/EMI Suppression Filters > Ferrite Cores for EMI Suppression > Multi-hole Cores
Data Sheet
Continued from the preceding page.
3
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Data/Notice
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Standard Characteristics of Ferrite Materials
Material
RT
RX
RN
RC
µi
1600
750
550
250
Bs (mT)
290
330
310
320
Tc (°C)
U110
U110
U130
U140
ρ
(Ω-m)
>10
5
>10
5
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Ferrite Material Comparison
500
200
100
Impedance [Ω]
RX
50
20
10
5
RN
2
0.5
1
2
5
10 20
Frequency [MHz]
50
100
500
RC
RT
>10
5
>10
5
Size of ferrite core (30ø - 20ø - 6)
Size of Ferrite Core (30ø –20ø –6)
N=3 turns
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Notice (Storage and Operating Condition)
This product is designed for use in the following
environment.
FSRH/FSRB/FSRC/FSMA/FSSA_T
Operating Temperature: -25 to 85 degrees C
Storage Temperature: -25 to 125 degrees C
FSSA_S
Operating Temperature: -25 to 85 degrees C
Storage Temperature: -25 to 85 degrees C
Do not use in the following environments or under
the following conditions:
1. Ambient air containing corrosive gas
(Chlorine gas, Hydrogen sulfide gas, Ammonia gas,
Sulfuric acid gas, Nitric oxide gas, etc.)
2. In liquid
3. Other environments similar to 1 through 2
FSSA_S Strorage
Store in manufacture's package or tightly re-closed
box with following conditions.
Temperature: -10 to +35 degrees C
Humidity: 15 to 85% RH
Use this product within 6 months after receipt.
The storage in high temperature, high humidity or quick
temperature change will damage to the function of tape.
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Notice (Handling)
1. Protect product from damage that may occur in
transit such as cracking of core.
2. Handle product with care. Do not drop and throw.
3. Do not apply excessive force to the product.
!
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.
2010.7.8
http://www.murata.com/
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