Coated thermal plates aid safety-conscious cooling: News from The Bergquist Company

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New from Bergquist, the IsoEdge range of heatsink products can improve component packaging densities, reduce parts counts and cut the assembly costs of a wide range of electronic products. Available in custom and off-the-shelf configurations, IsoEdge thermal plates help designers to comply with safety agency criteria without resorting to the use of older flat-based heatsinks and individual insulators. Intended in particular for use within power convertor designs, IsoEdge thermal plates are made using a powder-coating technology which confers a dielectric isolation of 2250V DC.

Use of the coating improves overall thermal performance by allowing the heatsink to be brought into extremely close proximity to the heat-generating components, while retaining conformance to safety requirements for electrical isolation.

As a result designers can dramatically decrease thermal gradients in assemblies such as DC/DC convertors, in turn improving long-term reliability.

The IsoEdge coating, just 0.076 to 0.25mm thick, allows the production of a variety of product configurations using extrusion, stamping, casting and machining techniques, with inherent 3D dielectric safety.

IsoEdge provides inherent creepage and clearance to UL standards.

Its inherent qualities also mean that manufacturers can eliminate or minimise use of costly, time-consuming hipot testing from their production flow Specified for use from -30 to +140C, IsoEdge coating exhibits a volume resistivity of 400Mohm and thermal conductivity of 0.3 to 0.4W/m-K.

It is RoHS-compliant, and where necessary can be used in combination with Bergquist's wide variety of gap filler materials to optimise the thermal path from the heat generating components to the plate.

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Coated thermal plates aid safety-conscious cooling

The IsoEdge range of heatsink products can improve component packaging densities, reduce parts counts and cut the assembly costs of a wide range of electronic products.