The Kemvent Range

31 October 2018

The Kemvent Range

A range of low cost plastic EMC vents for use with 40, 60, 80, 92 & 120mm fans. They provide RFI/EMI shielding where applications demand a cost effective solution, whilst still providing an adequate shielding performance for most commercial applications of over 50db up to 10 GHz.

The Hi-impact ABS UL94V-0 fire retardant moulding is fitted with one layer of 3.2mm cell x 6.35mm thick aluminium honeycomb and an electrically conductive nickel/copper fabric over foam gasket to ground the honeycomb to the metalwork.

As well as providing RFI/EMI shielding the fan vents ensure good thermal management of an electronics enclosure ensuring a good exchange of air. The vents have 4 countersunk holes to suit standard fan mountings so are easy to fit with no modification.

The measured shielding performance in accordance with Mil Std 285 is shown below (based on tested performance of an 80mm sized vent).

Frequency Field Typical (db)
200KHz H 53
100MHz E 102
500MHz P 85
2GHz P 74
10GHz P 58

 

Kemtron manufacture and supply a full range of RFI/EMI shielding gaskets and components including electrically conductive elastomers, knitted wire mesh gasket strip, conductive fabric over foam gaskets, beryllium copper finger stock, shielded optical windows and more.

For more information on our ventilation products, please click here.

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