The following parameters were extracted from the datasheet of 2N3904, small signal npn transistor. Maximum operating...
The following parameters were extracted from the datasheet of 2N3904, small signal npn transistor.
- Maximum operating temperature = 150 °C
- R junction to ambient = 200 °C/W
- R junction to case = 83.3 °C/W
- Ambient temperature = 25 °C
-
a.Calculate the maximum power that the transistor can dissipate without a heat sink.
(2 marks)
-
b.The transistor is being designed to have an average power loss of 0.9 W while operating at a junction temperature of 125 °C. Find the thermal resistance of the heat sink required to prevent the transistor from overheating.
(2 marks)
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The following parameters were extracted from the datasheet of
2N3904, small signal npn transistor.
Maximum operating...
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