TDK EMC Technology
Noise Suppression Sheets
Flexield
Flexield® is an absorptive electromagnetic shielding material consisting of magnetic material and resin. It
suppresses noise radiated from electronic equipment over a wide range of frequencies, offers flexibility in
fabrication and delivers particularly excellent performance in high frequency ranges. Flexield® is the ideal
sheet-type noise reduction product for mobile devices including notebook PCs, digital cameras and cell phones.
＊All
Product Conforming to RoHS Directive
☆Features
They are flexible(Will not crack).
They are suited for thin and compact
devices.
Available in a wide range of dimensions
and shapes.
The products in the line-up support a
wide range of frequency bands(10M-
10GHz)
☆
Applications 1
Electromagnetic noise reduction for electric
equipment (especially for mobile equipment)
Internal EMI, resonance reduction(mounting
inside a shielded box)
• RF-block • Amplifier
Radiated noise reduction(Circuit, IC, flat
cable)
Surface current suppression
Improvement of noise immunity
SAR reduction for mobile phone
Electrostatic discharge countermeasure1
☆Materials list by thickness
Standard
sheet
thickness
(mm)
Halogen-free
Flame
retardant
UL94V-0
☆Method of naming the products
0.05
0.1
0.25
0.5
1.0
2.0
IRL0 2
IRL0 5
IRL0 4
IRL0 4
IRL0 2
IRL0 2
IRJ0 4
IRJ0 4
IRJ0 4
Adhesion processing
sign
NEW
IR L02
IR L04
50MHz~10GHz
-40~+85
≧30
≧10K
☆Specifications
Recommended
frequency range
Operating temperature
range (°C)
Initial permeability µi
[at 10MHz]
Resistivity(Ω/□) min.
Environment
Flame retardant
Standard sheet
dimensions (mm)
Standard sheet
thickness (mm)
300X200
0.05
200X200
1 , 2
100MHz~10GHz
-40~+85
≧20
≧１M
NEW
IR L05
10MHz~10GHz
-40~+85
≧50
≧１G(The magnetic
layer/10
typ．)
NEW
IR J 04
50MHz~10GHz
-40~+85
≧35
≧１M
Product Conforming
to RoHS Directive
UL94V-0
sign
A
AB
AT
Thickness
0.17mm
0.03mm
0.01mm
Product Conforming to RoHS DirectiveHalogen-free
－
300X200
0.25,0.5
300X200
0.11(The magnetic
layer/0.1)
300X200
0.1,0.25,0.5
• All specifications are subject to change without notice.
• It may not be allowed to export these absorbers due to Export Control regulations.
TDK EMC Technology
Noise Suppression Sheets
☆
Applications 2
Flexield
☆Basic characteristics
The decoupling effect
Reduces the opposite line of high-
frequency
magnetic-field
elements
occurring due to signal lines and Ics inside
devices,and reduces inductive coupling of
cohesive units
The filter effect
Reduces the effects of high-frequency
elements by adding impedance to signal
lines
Common-mode electrical
current reduction effect
Reduces the common-mode electrical
current elements superposed in the
flexible cables connecting high-speed
circuits and the like.
IRL02 0.05mm
12
Attenuation Ratio [dB]
減衰比[dB]
0
IRL04 0.5mm
IRL04 0.25mm
12
減衰比[dB]
Attenuation Ratio [dB]
10
8
6
4
2
0
0
500
IRL05 0.1mm
IRL04 0.5mm
10
S21[dB]
8
6
4
2
0
0
500
1000
Ferquency[MHz]
周波数[MHz]
1500
IRL04 0.25mm
IRL05 0.1mm
IRL02 0.05mm
-5
-10
-15
-20
-25
0
IRL04 0.5mm
IRL05 0.1mm
IRL04 0.25mm
IRL02 0.05mm
1000
2000
Ferquency[MHz]
周波数[MHz]
3000
1000
1500
Ferquency[MHz]
周波数[MHz]
2000
●Attenuation Ratio [dB] = S21 [dB] without Flexield － S21 [dB] with Flexield
Product information
ＨＰ
http://www.tdk.co.jp/absorber/
ＴＤＫ
Corporation EMC engineering business div.
Sales Tokunaga／Hattori E-mail：shtoku@mb1.tdk.co.jp／hhattori@mb1.tdk.co.jp
1-13-1,Nihonbashi,Chuo-ku,Tokyo 103-8272 ,Japan
TEL:81-3-5201-7288 FAX:81-3--5201-7277
• All specifications are subject to change without notice.
2005.08.30
• It may not be allowed to export these absorbers due to Export Control regulations.
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