Posted on 15 August 2014 by Electrolube
The electronics industry is one of the most rapidly expanding industries to date, with endless research and introduction into new applications. Printed circuit boards (PCBs) are found in many domestic, industrial, automotive and military devices, to name but a few. In most of these applications, reliability is essential, even when the device may be subject to harsh conditions such as high humidity, corrosive atmospheres or high levels of dust or contamination. Conformal coatings can be utilised to protect the PCBs from such environments, ensuring optimum performance under the toughest conditions. They are applied as thin films, typically ranging from 25-75µm, and conform to the contours of the board, providing maximum protection with minimum weight or dimensional change to the PCB. This is one of the primary advantages of conformal coatings, particularly with popular trends in miniaturisation and portable devices.
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Posted on 14 August 2014 by Electrolube
The electronics industry is one of the most rapidly expanding industries to date, with new applications seemingly endless. Printed circuit boards (PCBs) are found in many domestic, industrial, automotive and military devices, to name but a few. In such applications the environments can cause electrical performance to deteriorate due to the absorption of atmospheric moisture or electrostatic attraction of dust. Under extreme conditions, exposure to corrosive atmospheres or harsh chemicals, are just a couple of examples. In order to ensure reliability of these critical devices it is essential that the PCBs are protected to prevent reduced performance or in the worst case, complete failure. This protection can be offered in the form of a conformal coating or potting and encapsulation resins.
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Posted on 12 August 2014 by Electrolube
During use, some electronic components can generate significant amounts of heat. Failure to effectively dissipate this heat away from the component and the device can lead to reliability concerns and reduced operational lifetimes. Newton’s law of cooling states that the rate of loss of heat is proportional to the temperature difference between the body and its surroundings. Therefore, as the temperature of the component increases and reaches its equilibrium temperature, the rate of heat loss per second will equate to the heat produced per second within the component. This temperature may be high enough to significantly shorten the life of the component or even cause the device to fail. It is in such cases that thermal management measures need to be taken. The same considerations can be applied to a complete circuit or device which incorporates heat producing individual components.
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