Kemvent - Low cost Plastic EMC vents for fans |
| A range of low cost plastic EMC vents 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. A Hi-impact ABS UL94V-0 fire retardent moulding is fitted with one layer of 3.2mm cell x 6.35mm thick honeycomb and a nickel/copper fabric gasket to ground the honeycomb to the metalwork. The vents have 4 countersunk holes to suit standard fan mountings. |
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| Measured shielding performance in accordance with Mil Std 285 (80mm size tested) | ||
| Frequency | Field | Typical (db) |
| 200kHz | H | 53 |
| 100MHz | E | 102 |
| 500MHz | P | 85 |
| 2GHz | P | 74 |
| 10GHz | P | 58 |
| Dimensions | |||
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| Type | C | D | E |
| Kemvent40 | 32.0mm | 8mm | 45.5mm |
| Kemvent60 | 50.0mm | 9mm | 66.0mm |
| Kemvent80 | 71.5mm | 10mm | 84.5mm |
| Kemvent92 | 82.0mm | 10mm | 97mm |
| Kemvent120 | 104.0mm | 10mm | 125mm |