TDK EMC Technology
Noise Suppression Sheets Flexield
• All specific ations are subject to change without notice.
• It may not be allowed to export these absorbers due to Export Control regulations.
☆Features
Features
zThey are f l exible(Will not crack).
zThey are suited for thin and compact
devices.
zAvailable in a wide range of dimensions
and shapes.
zThe products in the line-up support a
wide range of frequency bands(10M-
10GHz)
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.
☆Applications
Applications 1
1
zElectromagnetic noise reduction for electric
equipment (es pecially 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
z Improvement of noise immunity
z SAR reduction for mobile phone
zElectrostatic discharge countermeasure1
☆
☆Materials list by thickness
Materials list by thickness
☆
☆Specifications
Specifications
Standard
sheet
thickness
(mm)
Halogen-free
Flame
retardant
UL94V-0
0.05 IRL02
0.1 IRL05 IRJ04
0.25 IRL04 IRJ04
0.5 IRL04 IRJ04
1.0 IRL02
2.0 IRL02
IRL04 IRL05 IRJ04
Recommended
frequency range 50MHz~10GHz 10MHz~10GHz 50MHz~10GHz
Operating temperature
range (°C) -40~+85 -40~+85 -40~+85
Initial permeability µi
[at 10MHz] ≧30 ≧50 ≧35
Resistivity(Ω/□) min. ≧10K ≧１G(The magnetic
layer/10
typ．)
≧１M
Environment Product Conforming
to RoHS Directive
Flame retardant UL94V-0
Standard sheet
dimensions (mm) 300X200 200X200 300X200 300X200 300X200
Standard sheet
thickness (mm) 0.05 1 , 2 0.25,0.5 0.11(The magnetic
layer/0.1) 0.1,0.25,0.5
－
Product Conforming to RoHS DirectiveHalogen-free
IRL02
100MHz~10GHz
-40~+85
≧20
≧１M
NEW
☆
☆Method of naming the products
Method of naming the products
＊All Product Conforming to RoHS Directive
NEW
Adhesion processing
sign
Thickness sign
0.01mm AT
0.03mm AB
0.17mm A
NEW
TDK EMC Technology
Noise Suppression Sheets Flexield
• All specific ations are subject to change without notice.
• It may not be allowed to export these absorbers due to Export Control regulations.
0
2
4
6
8
10
12
0 500 1000 1500
周波数[MHz]
減衰比[dB]
☆
☆Basic characteristics
Basic characteristics
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,C huo-ku,Tokyo 103-8272 ,Japan TEL:81-3-5201-7288 FAX:81-3--5201-7277
IRL04 0.25mm
IRL05 0.1mm
IRL02 0.05mm
-25
-20
-15
-10
-5
0
0 1000 2000 3000
周波数[MHz]
S21[dB]
IRL04 0.25mm
IRL05 0.1mm
IRL02 0.05mm
0
2
4
6
8
10
12
0 500 1000 1500 2000
周波数[MHz]
減衰比[dB]
IRL04 0.5mm
IRL04 0.25mm
IRL05 0.1mm
IRL02 0.05mm
●Attenuation Ratio [dB] = S21 [dB] without Flexield － S21 [dB] with Flexield
The decoupling effect
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
The filter effect
Reduces the effects of high-frequency
elements by adding impedance to signal
lines
Common
Common-
-mode electrical
mode electrical
current reduction effect
current reduction effect
Reduces the common-mode electrical
current elements superposed in the
flexible cables connecting high-speed
circuits and the like.
☆
☆Applications
Applications 2
2
2005.08.30
IRL04 0.5mm
IRL04 0.5mm
Ferquency[MHz] Ferquency[MHz] Ferquency[MHz]
Attenuation Ratio [dB]
Attenuation Ratio [dB]
