Q6.C. A transistor with a maximum junction temperature of 120 C° has a junction to the base thermal resistance of 0.8 C/W. It has to operate at an ambient temperature of 50 C° and an average power dissipation of 30 W. A mica insulator of 0.2 C/W thermal resistance is used to insulate the transistor base from the heat sink. Calculate the thermal resistance of the heat sink to satisfy the mentioned requirement. Choose the appropriate heat sink number from the table below. T = P + Ta
Q6.C. A transistor with a maximum junction temperature of 120 C° has a junction to the base thermal resistance of 0.8 C/W. It has to operate at an ambient temperature of 50 C° and an average power dissipation of 30 W. A mica insulator of 0.2 C/W thermal resistance is used to insulate the transistor base from the heat sink. Calculate the thermal resistance of the heat sink to satisfy the mentioned requirement. Choose the appropriate heat sink number from the table below. T = P + Ta
Introductory Circuit Analysis (13th Edition)
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![Q6.C. A transistor with a maximum junction temperature of 120 Cº has a junction to the base
thermal resistance of 0.8 C/W. It has to operate at an ambient temperature of 50 C° and an
average power dissipation of 30 W. A mica insulator of 0.2 C/W thermal resistance is used to
insulate the transistor base from the heat sink. Calculate the thermal resistance of the heat sink
to satisfy the mentioned requirement. Choose the appropriate heat sink number from the table
below.
T = P T + TA
Heat sink No. 1
Re in C/W
2.3
2
2.2
3
2.15
4
2.1
5
1.7
6
1.3
7
1.25
8
1.2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F11ead469-10e0-4c68-86d8-ea5d797ee981%2Fd1e460a6-41fb-4995-9e52-288c51dec762%2Fmyey443_processed.png&w=3840&q=75)
Transcribed Image Text:Q6.C. A transistor with a maximum junction temperature of 120 Cº has a junction to the base
thermal resistance of 0.8 C/W. It has to operate at an ambient temperature of 50 C° and an
average power dissipation of 30 W. A mica insulator of 0.2 C/W thermal resistance is used to
insulate the transistor base from the heat sink. Calculate the thermal resistance of the heat sink
to satisfy the mentioned requirement. Choose the appropriate heat sink number from the table
below.
T = P T + TA
Heat sink No. 1
Re in C/W
2.3
2
2.2
3
2.15
4
2.1
5
1.7
6
1.3
7
1.25
8
1.2
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