Low Cost EMI Vent Panels

We stock a range of Low cost EMI Vent Panels for use with 40mm, 60mm, 80mm, 92mm & 120mm fans. They provide EMC shielding where applications demand a low cost solution, whilst still providing an adequate shielding performance.

These are available ‘off the shelf’ for fast delivery and significantly more cost effective if small volume shielding vents are required.

Plastic Housing/Honeycomb filter

Single Layer Honeycomb

A Hi-impact ABS UL94-HB fire retardant moulding is fitted with one layer of 3.2mm cell x 6.35mm thick honeycomb and a nickel over copper plated fabric over foam gasket to ground the honeycomb to the metalwork. The vents have 4 countersunk holes to suit standard fan mountings.

Shielding Effectiveness
Measured performance in accordance with MIL-STD 285 (80mm tested)
Frequency	Field	Typical (db)
200kHz	H	53
100Mhz	E	102
500MHz	P	85
2GHz	P	74
10GHz	P	58

Part No	Hole Pitch	Thickness	Height/Width
SSvent40	32.0mm	8mm	45.5mm
SSvent60	50.0mm	9mm	66.0mm
SSvent80	71.5mm	10mm	84.5mm
SSvent92	82.0mm	10mm	97.0mm
SSvent120	104.0mm	10mm	125.0mm

Double Layer Honeycomb

A Hi-impact ABS UL94-V0 fire retardant moulding is fitted with two layers of honeycomb at 90 degrees (cross cell) to ach other. One layer of 3.2mm cell x 3.2mm thick honeycomb, one layer of 3.2mm cell x 5mm thick honeycomb and a nickel over copper plated fabric over foam gasket to ground the honeycomb to the metalwork. The vents have 4 countersunk holes to suit standard fan mountings.

Shielding Effectiveness
Measured performance in accordance with MIL-STD 285 (80mm tested)
Frequency	Field	Typical (db)
200kHz	H	88
100Mhz	E	130
500MHz	P	115
2GHz	P	101.5
10GHz	P	91.5

Part No	Hole Pitch	Thickness	Height/Width
SSvent40/2	32.0mm	8.4mm	46.5mm
SSvent60/2	50.0mm	12.5mm	64.9mm
SSvent80/2	71.5mm	12.5mm	84.8mm
SSvent92/2	82.0mm	12.5mm	96.9mm
SSvent120/2	104.0mm	12.5mm	126.3mm

Aluminium Frame/Stainless media

Aluminium/Stainless filters offer high levels of air passage while efficiently filtering contaminants and shielding EMI/RFI. Their tightly woven stainless corrugated mesh screen offers the highest performance. Designed to fit all 60mm, 80mm, 92mm, 120mm and 162mm tube axial fans, filters may be mounted directly onto the fan or to any other housing.

Shielding Effectiveness
Measured performance in accordance with MIL-STD 285 (80mm tested)
Frequency	Field	Typical (db)
200kHz	H	59
100Mhz	E	115
500MHz	P	92
2GHz	P	77
10GHz	P	66

Part No	Hole Pitch	Thickness	Height/Width
LCV003-60	50mm	4.5mm	60mm
LCV003-80	71.5mm	4.5mm	800mm
LCV003-92	82.5mm	4.5mm	92mm
LCV003-120	104.8mm	4.5mm	120mm
LCV003-127	113.3mm	4.5mm	127mm