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Lytron Offers New New Ultra-High Performance Copper Cold Plate

Copper Etch Cold Plate

July 6, 2005, Woburn, MA: Lytron's new CP40 copper etch cold plate offers a combination of ultra-high performance, water compatibility and a low pressure drop. With a thermal resistance of only 0.0015°C/W at 3 gpm, it is ideal for demanding electronics cooling applications.

The CP40's high performance is primarily achieved by crossed micro-channels, which create turbulent fluid flow. The micro-channels are etched into the copper beneath the entire surface of the cold plate, resulting in excellent thermal uniformity. The copper's high thermal conductivity enhances the performance and, since the cold plate is constructed entirely of copper, it is compatible with untreated water and many other common coolants.

The CP40 has a very low pressure drop - just 5 psi at a flow rate of 1 gpm. Although the individual channels are very small, the overall cross-sectional area is large as the water flows through many paths simultaneously. The low pressure drop allows the CP40 to be used at flow rates up to 6gpm, resulting in a normalized thermal resistance of only 0.058°C-in2/W.

The CP40's proprietary, patent-pending manufacturing process results in a 100% metallurgical bond between the copper plates to ensure a leak-free and highly reliable product.

The CP40 is only 0.10" thick and weighs just 2.2 lbs, making it ideal for applications where space is at a premium and low weight is desirable. Although it has a slim profile, the plate is rigid and can handle high compressive pressures.

The standard CP40 measures 6" x 9" so it is suitable for large area cooling or multiple components. It is pre-drilled to accommodate common power electronics packages. Components can also be attached with clamps, adhesives, or reactive metal foil with solder. The cold plate is flat on both sides to enable dual sided mounting. A choice of straight or beaded fittings facilitates integration into cooling circuits.

For OEM volumes, the CP40 can be customized to virtually any size (up to 7" x 11"), shape and thickness. Holes or drillable areas can be added by including 'islands' in the etch pattern.

About Lytron

Lytron designs and manufactures high performance heat transfer systems and components. Its cooling products include recirculating chillers, compact and portable non-refrigerated cooling systems, cold plates, aluminum oil coolers, copper tube fin heat exchangers, stainless steel tube-fin heat exchangers, and compact brazed-plate heat exchangers.

For more information, contact Lytron at (781) 933-7300 or visit