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Profile Heat Sinks for Power Electronics

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CTX offers cooling solutions for power supply units, transducers, battery chargers, frequency converters, electric drives, and inverters. Which heat sink to use depends on the power dissipation and on the requirements of the particular device. Extruded profile heat sinks, cold forging heat sinks, and PCB board or SMD heat sinks for natural convection are typical options for robust and low-maintenance devices. large heatsink

Effective thermal dissipation through natural convection is achieved with aluminum profile heat sinks. This is made possible by the rib-like construction called fins, which results in a large overall heat sink surface area. Aluminum profile heat sinks are generally manufactured from an aluminum extruded alloy with a thermal conductivity of 200-220 W/mK.

The CTX portfolio comprises both standard and project- or application-specific cooling solutions. The spectrum of standard extruded heat sinks includes fin, comb and finger heat sinks, as well as PCB-board heat sinks. Standard profile heat sinks range from 12.4 mm to 750 mm in width, with a weight between 130 g/m and 75.1 kg/m and thermal resistance Rth between 81.6 °C/W and 0.04 °C/W.

On request, CTX will also perform post-CNC machining, based on customer drawings. The cooling specialist’s services likewise include professional surface treatment, like wet-painting, chrome plating, anodizing, or powder coating. CTX also offers its customers labeling of their heat sinks by means of screen printing or laser engraving, as well as surface treatment by sand blasting or glass ball blasting.  

Liquid-cooled heat sinks are used in applications where passive or fan-based cooling solutions are insufficient, but effective cooling is indispensable. However, there are major differences between liquid-cooled heat sinks. The optimal production process for the particular application depends on various factors, such as the desired material and coolant, the specified cooling capacity, and the required number of heat sinks.

Efficient cooling of switch-mode power supplies

CTX heat sinks for embedded systems

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