Product category:
Gaskets, Seals and Screens
News Release from: Warth International | Subject: Copper beryllium based finger strips
Edited by the Electronicstalk Editorial
Team on 02 January 2001
Sponge fingers improve EM sealing
Warth International has designed a series of copper beryllium based finger strips which incorporate a high-wear-resistance closed cell sponge.
A critical design consideration for any new telecoms application is successful electromagnetic shielding, but a design that worked a few years ago may not be appropriate for today's faster more compact devices One of the aspects that must be considered is wear and tear on the gaskets themselves
This article was originally published on Electronicstalk on 19 Jul 2000 at 8.00am (UK)
Related stories
Low cost alternative to silver EMC seals
Warth International have developed a viable, low cost alternative to expensive silver based conductive elastomers for emc and environmental seals
Flexible grounding for mobile devices
Tiny, conformable grounding pads from Warth International are being used to address one of the primary concerns when designing the electronics within a small mobile device
Older style conductive elastomers that were traditionally used to seal around the door of an electronics cabinet can be worn by the slight wiping action of the door closing against the frame of the unit.
This can lead to some conductive particles being dislodged from the gasket and falling into the delicate electronics below.
The more compact nature of the electronics means that these particles represent a real danger of shorting components.
Warth International has designed a series of copper beryllium based finger strips which incorporate a high wear resistance closed cell sponge to counter this problem.
The copper beryllium strips are designed specifically to be compressed and decompressed with a potential wiping action for many years without degradation, and the sponge acts as an environmental seal that can produce results equal to or better than ordinary conductive elastomers.
The finger strips have been designed with a very strong pressure sensitive adhesive running along their lengths, and so can be immediately retrofitted to existing designs or incorporated into newer products.
The fingers are available in a variety of metal finishes to offer the maximum galvanic compatibility.
• Warth International: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
