A transistor with a height of 0.4cm and a diameter of 0.6cm is mounted on a circuit board. The transistor is cooled by air flowing over it with an average heat transfer coefficient of30W/m2K. If the air temperature is 55°C and the transistor case temperature is not to exceed 70°C. determine the amount of power this transistor can dissipate safely. Disregard any heat transfer from the transistor base.
A transistor with a height of 0.4cm and a diameter of 0.6cm is mounted on a circuit board. The transistor is cooled by air flowing over it with an average heat transfer coefficient of30W/m2K. If the air temperature is 55°C and the transistor case temperature is not to exceed 70°C. determine the amount of power this transistor can dissipate safely. Disregard any heat transfer from the transistor base.
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Transcribed Image Text:A transistor with a height of 0.4cm and a diameter of 0.6cm is mounted on a circuit board. The transistor is
cooled by air flowing over it with an average heat transfer coefficient of30W/m2K. If the air temperature is
55°C and the transistor case temperature is not to exceed 70°C. determine the amount of power this
transistor can dissipate safely. Disregard any heat transfer from the transistor base.
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