Silicon power transistors with higher junction temperatures

Q.  Which types of power transistors have the capability to withstand the higher junction temperatures?
- Published on 24 Sep 15

a. Silicon power transistors
b. Germanium power transistors
c. Both a and b
d. None of the above

ANSWER: Silicon power transistors

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    Discussion

  • Satyawati   -Posted on 05 Oct 15
    On the basis of material used, power transistors are classified into two types – Silicon & Germanium power transistors.

    The typical value of maximum junction temperature in silicon power transistor lies in the range of about 150o C to 200o C while the maximum junction temperature range for Germanium power transistor is 100oC to 110oC.

    Comparing the maximum junction temperatures of both the types of power transistors, Silicon power transistors possess higher range values of junction temperature. Therefore, they have the ability to withstand at higher junction temperatures.

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