Our thin shielded vent panels are effectively slimmer versions of the EMI shielded airfilters but with different filtration media. The thin EMI Shielding vents are available in two basic types referred to as A & B for ease of reference.
Thin Vent A panels incorporate an expanded aluminium mesh which is crimped into an aluminium extrusion frame. The Thin Vent A style offers excellent dust filtration and EMI shielding performance but considerably restricted airflow.
Thin Vent B panels incorporate a woven aluminium or expanded Monel foil crimped into an extruded aluminium frame.
EMI shielded thin vent panels are designed for enclosures or racks where RF attenuation and protection from the ingress of foreign bodies is required but space is at a premium.
The type A expanded aluminium mesh panels are nominally 6.0mm thick inside a 4.8mm thick frame and provide attenuation levels considerably higher than the type B woven aluminium and expanded Monel foil types which have a very small effect on airflow but offer less shielding effectiveness.
All three shielding materials have very different properties and their airflow characteristics are a function of size, positioning, application and airflow source / volume. We suggest that a sample of the materials is requested for customer testing before specifications are finalised - please ask our sales office.
|Frequency||Field||Type VT(A)||Type VT(B1)||Type VT(B2)|
VT(A) media is expanded aluminium mesh
VT(B1) media is woven aluminium 0.5mm @ 16 OPI (openings per inch)
VT(B2) media is expanded Monel mesh 0.5mm @ 12 OPI
|Overall dimensions||± 0.8mm|
|Fixing holes/fasteners||± 0.5mm|
|with jigs ± 0.2mm|
Specify: Shielding Series-Frame Style- Vent Media-Overall Size-Number of fixings-Fixing Type/Size
Where possible please provide a detailed drawing.
|Shielding Series||Frame Style||Filter Media||Overall Size||Fixings (No.)||Fixing Type|