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Why some transistors required heat sink |
Answer» <html><body><p>Transistor junction temperature has to be maintained below 150 degrees Celsius for its safe operation. If excessive power dissipation happens in the transistor, its junction temperature can rise to eventually <a href="https://interviewquestions.tuteehub.com/tag/kill-528070" style="font-weight:bold;" target="_blank" title="Click to know more about KILL">KILL</a> the device. This is where heat sink comes into the picture. A heat sink absorbs and <a href="https://interviewquestions.tuteehub.com/tag/efficiently-2604067" style="font-weight:bold;" target="_blank" title="Click to know more about EFFICIENTLY">EFFICIENTLY</a> transfers heat from transistor to surrounding which brings down its temperature. To achieve this, the heat sinks are <a href="https://interviewquestions.tuteehub.com/tag/made-3718337" style="font-weight:bold;" target="_blank" title="Click to know more about MADE">MADE</a> up of thermally conductive metal with many <a href="https://interviewquestions.tuteehub.com/tag/fins-17340" style="font-weight:bold;" target="_blank" title="Click to know more about FINS">FINS</a> which increases its <a href="https://interviewquestions.tuteehub.com/tag/surface-1235573" style="font-weight:bold;" target="_blank" title="Click to know more about SURFACE">SURFACE</a> area to increase the rate of heat transfer to the surrounding.Explanation:Hope it helps you!!!Mark it as the Brainliest .</p></body></html> | |