EMI shielding for medical device enclosures
Chomerics
Soft-Shield 4850
Chomerics Europe - a division of Parker Hannifin - has launched Soft-Shield 4850, an EMI shielding material that is suitable for medical applications using electronics equipment for patient care.
The material uses silver-plated fibres rather than nickel to provide electrical conductivity; contact with nickel, commonly used in shielded gasket materials, has been shown to cause an allergic reaction in some people and can result in dermatitis.
Soft-Shield 4850 utilises multi-planar, Z-axis conductive foam technology to help it deliver shielding effectiveness of 95dB average.
The material is said to provide a low-closure-force, cost-effective shielding solution with good through-resistance and compression set properties.
This makes it a suitable gasket and shielding solution for portable medical equipment enclosures.
A selectively coated pressure sensitive adhesive (PSA) can be specified to help simplify and speed assembly.
The material is supplied in custom profiles as well as rectangular or square strip gasket seals.
Operating temperature range is -40C to +70C.
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