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Micro expanded mesh

micro expanded mesh icon 1

Series

The 8930 series is developed for different EMI/EMC applications and a effective EMI shielding materials. It can be used as standard mesh foil or it can be placed inbetween our shielded windows for a shielded interlayer.

The micro expanded mesh foil is lightweight and minimal 0.05mm and 0.075mm thick. The width of the roll is standard 450mm. It can be custom made in different widths and lengths on request.

Unlike knitted from woven mesh, the 8930 shows that it is consistent and predictable. The product is available in different materials like:


Raised (conventional) mesh dimensions
micro expanded mesh raised

Raised (conventional) mesh
Strands are measured from knockle to knockle.


Flattened mesh dimensions
micro expanded mesh flattened

Flattened mesh
Mesh which has been pressure rolled, resulting in strands which are in the same plane as the sheet.

Materials
  • Copper
  • aluminum
  • Nickel
  • Monel
Benefits
  • Effective EMI shielding material
  • Made from thin metal
  • Strong and very flefible
  • consistent and predictable

8930 Micro expanded mesh shielding performance

Please note : These values are measured under laboratory conditions. Results may vary in other situations; please read our Guarantee.


Specifications
Material Thickness weight2 Open area Shielding effectiveness 1 (dB)
G·m-2 100 MHz 1 GHz 10 GHz
Copper 0.05 (50µm) 215 53% 72 53 33
Copper 0.075 (75µm) 245 64% 60 42 25
Alluminium 0.05 (50µm)  65 53% 70 51 32
Alluminium 0.075 (75µm)  74 64% 58 41 23
Nickel 0.05 (50µm)  214 53% 60 46 28
Nickel 0.075 (75µm)  243 64% 54 40 24
Monel 0.05 (50µm)  271 39% 67 53 36
Monel 0.075 (75µm)  395 41% 63 46 30
1 Test method: ASTM D4935-10
2 ±10%
Various aperture coefficients is extrapolated to the theoretical O dB crossing frequency.
The predicted 20 dB/decade reduction of SE with frequency is experimentally confirmed.
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