Micro expanded mesh -9 - Japan Homeland Security Corporation

Micro expanded mesh

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:

Materials

Copper
aluminum
Nickel
Monel

Raised (conventional) mesh dimensions

Raised (conventional) mesh

Strands are measured from knockle to knockle.

Benefits

Effective EMI shielding material
Made from thin metal
Strong and very flefible
consistent and predictable

Flattened mesh dimensions

Flattened mesh

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

8930 Micro expanded mesh shielding performance

8930-Cu-0.05
8930-Cu-0.075
8930-Al-0.05
8930-Al-0.075
8930-Ni-0.05
8930-Ni-0.075
8930-Mo-0.05
8930-Mo-0.075

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)
Material	Thickness	G·m^-2	Open area	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.