71. Transistor Part Selection

Question.7

A BJT transistor is used to switch a load such as a relay, motor, or LED strip.
The load current is only 25% of the transistor’s maximum collector current rating.

The circuit works correctly, but after a few seconds the transistor becomes very hot, even though nothing looks shorted.

What is the most likely reason?

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The transistor is not getting enough base drive to turn fully ON
Transistor is in saturation region.
Transistor is faulty as with 25% current it should not get hot.
The transistor is placed too close to other components