What is stability of transistor?

Answer 1

Transistors need thermal stabilization because the operating point of a transistor junction, similar to a diode, is affected by temperature. In fact, this can cause thermal runaway, and device destruction, if the circuit design does not compensate for this.

Answer mostly correct but the operating point of a transistor must remain fixed as temperature varies whether going low or higher. that is mainly the concern about. not runaway that is caused by bad design.

Answer 2

there are several stability issues on transistors.

1- Thermal stability : stability of temperature of transistors.

2- Oscillation stability: stability of circuit of transistors. sometimes if circuit design is not good, some transistors in a circuit starts to oscillate, In condition that thy does not need to oscillate.

3- Bias stability: stability of DC voltages of transistors (with temperature changes).

Answer 3

the stabalization of operatin point is nexessary dure t the following reasons;-

1.temperature dependance

2.individual variation

3.thermal runaway.