Rev. 2015-02 VITROLAM® sheets 1
VITROLAM
®
Thin and flexible shielding material
designed for wireless power
transfer applications
(e.g. smart phones, tablets, …)
Patent pending.
Composition:
Layered composite foil with VITROPERM
®
Application Requirement:
Power Transfer Efficiency (@ 110 …205 kHz): high efficiency of typ. 70% and more
Magnetic Shielding: protection of electronic components & battery from inductive heating
Features:
• 2 or 4 layers of nanocrystalline VITROPERM
®
800 R
• Thin: 0,10mm (2 layers) to 0,18 mm (4 layers) incl. PET foils and adhesives
• Flexible and easy to use ribbon sheet with black PET protection tape
• Excellent power transfer efficiency
• Outstanding shielding performance lowest temperature rise
• High temperature stability no performance degradation due to temperature rise
Magnetic properties of VITROPERM
®
800 R
Property Value Unit
Saturation polarisation (20°C) 1,23 T
Permeability (@ 100 kHz, 3 mA/cm) min. 12.000
Static coercivity typ. 1,5 A/m
Curie temperature 600 °C
Physical properties of VITROPERM
®
800 R
Property Value Unit
Thickness (CAT) per layer 0,018 mm
Electrical conductivity @ 100 kHz 0,35 10
6
(Ω m)
-1
Heat conductivity: approx. 12 W/(K m)
Rev. 2015-02 VITROLAM® sheets 2
Schematic drawing of VITROLAM
®
Properties of VITROLAM
®
2- layer type 4-layer type
VAC Material number:
96990755 96990756
Packaging Unit: 50 sheets 50 sheets
Compound thickness:
0,10 mm 0,18 mm
Width: 55 mm 56 mm
Length: 200 mm 200 mm
Temperature resistance of VITROLAM
®
Value Unit
Short term temperature resistance
:
120 °C
Long term temperature resistance: 55 °C
Preferred storage condition of VITROLAM
®
:
Humidity typically 50%, temperature < 25°C
Stacking
thickness 2 layers
15 µm
PET foil with adhesive on 1 side
20 µm
VITROPERM
®
800 R
100
µm
30 µm
PET foil
20 µm
VITROPERM
®
800 R
15 µm
PET foil with adhesive on 1 side
Stacking
thickness 4 layers
15 µm
PET foil with adhesive on 1 side
20 µm
VITROPERM
®
800 R
30 µm
PET foil
180
µm
20 µm
VITROPERM
®
800 R
10 µm
PET foil with adhesive on 2 sides
20 µm
VITROPERM
®
800 R
30 µm
PET foil
20 µm
VITROPERM
®
800 R
15 µm
PET foil with adhesive on 1 side
