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Noise Suppression Sheets/Magnetic Sheets/
Radio Wave Absorbers Flexield
FOR RFID MAGNETIC SHEETS IRL, IRJ, IFL, IBF MATERIALS
TDK’s Flexield is a highly flexible and shock resistant soft magnetic
sheet material consisting of magnetic material and resin.
It is highly effective when used in reader/writers or attached to tags
and metal components used in emerging RFID systems based on
the 13.56MHz band. With an extensive lineup of products that
deliver excellent permeability, Flexield allows designers to match
impedance with ease and delivers excellent magnetic conver-
gence.
FEATURES
• They are flexible(not crack).
• They are suited for thin and compact devices.
• Available in a wide range of dimensions and shapes.
• Conforming to RoHS Directive.
APPLICATIONS
• For improving reception performance in RFID reader/writers.
• Integrate IC cards with metal.
• Integrate IC tags with metal.
• Improved antenna reception sensitivity.
PRODUCT IDENTIFICATIONS
IRLG4
(1)
AB
(2)
H
(3)
Conformity to RoHS Directive
20 x 10 x 0.25
(4)
(5)
(6)
(1) Material name
(2) Double-sided tape symbol
No symbol: no double-sided tape used
A: double-sided tape (t=0.17)
AB: double-sided tape (t=0.03)
AT: double-sided tape (t=0.01)
(3) Product process symbol
(4) Length(20: 20mm)
(5) Width(10: 10mm)
(6) Thickness(0.25: 0.25mm)
SPECIFICATIONS
STANDARD TYPE
Type(Features/Application)
Material name
Operating temperature range (°C)
Initial permeability [at 1MHz]typ.
Resistivity(Ω/square) min.
Thermal conductivity (W/m • k)
Standard sheet dimensions (mm)
Standard sheet thickness (mm)
Standard sheet weight (g)
Density(g/cm
3
)
Flame retardant
Environment
General
IRLG4
–40 to +85
40
10k
1.5
300× 200
0.25
0.5
53
105
3.5
—
Conformity to RoHS Directive/
Halogen-free
Thick
IRL02
–40 to +85
25
1M
1.4
200× 200
1
2
128
256
3.2
—
Conformity to RoHS Directive/
Halogen-free
Unflammable
IRJ04
–40 to +85
40
1M
1.5
300× 200
0.1
0.25
22
54
3.6
UL94V-0
0.5
108
Conformity to RoHS Directive
THIN TYPE
Type(Features/Application)
Material name
Operating temperature range (°C)
Initial permeability [at 1MHz]typ.
Resistivity(Ω/square) min.
Thermal conductivity (W/m • k)
Standard sheet dimensions (mm)
Standard sheet thickness (mm)
Standard sheet weight (g)
Density(g/cm
3
)
Flame retardant
Environment
Low dissipation
IFL04
–40 to +85
45
10k
1.5
300× 200
0.05
0.1
9
19
3.1
—
Conformity to RoHS Directive /
Halogen-free
HIGH PERFORMANCE TYPE
Type(Features/Application)
Material name
Operating temperature range (°C)
Initial permeability [at 1MHz]typ.
Resistivity(Ω/square) min.
Thermal conductivity (W/m • k)
Standard sheet dimensions (mm)
Standard sheet thickness (mm)
Standard sheet weight (g)
Density(g/cm
3
)
Flame retardant
Environment
∗
∗∗
NEW
High permeability/
Low dissipation
IBF10
–40 to +85
100
1G
∗
—
100× 100
0.15
0.26
∗∗
6
10
∗∗
∗∗
3.7
—
Conformity to RoHS Directive
Surface film layer value
Includes surface film and adhesive layers
•
Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and
specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.
• All specifications are subject to change without notice.
008-01 / 20080916 / e9d1_1.fm
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