• All specifications are subject to change without notice.
• 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.
Magnetic Sheets for RFID
Flexield
Issue date: January 2014
Magnetic suppression sheet
IFL series
IBF series
Ferrite plate
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• All specifications are subject to change without notice.
Noise Suppression Sheets/Magnetic Sheets/
Radio Wave Absorbers Flexield
FOR RFID MAGNETIC SHEETS 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
(1) Material name
(2) Magnetic sheet thickness(100: 100µm)
(3) Surface film thickness symbol
(4) Double-sided tape thickness symbol
(5) Length(125: 125mm)
(6) Width(125: 125mm)
(7) Product symbol
SPECIFICATIONS
Conformity to RoHS Directive
IBF15 - 100 A B 125 × 125 A
(1) (2) (3) (4) (5) (6) (7)
Ty p e
(Features/Application)
Thin type
High performance
High permeability
Low dissipation
Material name IFL04 IBF15
Operating temperature range (°C) –40 to +85 –40 to +85
Initial permeability
[at 13.56MHz]
µ' typ. 45 150
µ" typ. 1.3 5
Resistivity(/square) min. 10K 1G
Thermal conductivity (W/m • K) 1.5 −
Standard sheet dimensions (mm) 300×200 125×125
Standard magnetic sheet thickness (mm) 0.05, 0.1, 0.2 0.1, 0.18
Compatible with rolls ○—
Flame retardant — —
Environment RoHS directive
Halogen-free RoHS directive
•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.
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• All specifications are subject to change without notice.
Product Identifications of The Standard Sample
IFL SERIES
(1) Material name
(2) Magnetic sheet thickness (100: 100µm）
(3) Surface film thickness symbol (N: Correspondence thickness）
(4) Double-sided tape thickness symbol (B: 10µm）
(5) Length(300: 300mm）
(6) Width(200: 200mm）
(7) Product symbol(No）
IBF SERIES
(1) Material name
(2) Magnetic sheet thickness (100: 100µm）
(3) Surface film thickness symbol (D: 30µm）
(4) Double-sided tape thickness symbol (D: 30µm）
(5) Length(125: 125mm）
(6) Width(125: 125mm）
(7) Product symbol(B: Standard）
IFL04 - 100 N B 300 × 200
(1) (2) (3) (4) (5) (6)
IFL04
Correspondence
thickness(mm) 0.05, 0.1, 0.2
Product name of the
standard sample
IFL04-050NB300×200
IFL04-100NB300×200
IFL04-200NB300×200
IBF15 - 100 D D 125 × 125 B
(1) (2) (3) (4) (5) (6) (7)
IBF15
Correspondence
thickness(mm) 0.1, 0.18
Product name of the
standard sample
IBF15-100DD125×125B
IBF15-180DD125×125B
