BJT Current Gains α and β (β = α/(1−α), α = β/(β+1), I_E = I_B + I_C)
jee-mainjee-advancedneet-ug
β = α/(1−α), α = β/(β+1), I_E = I_B + I_C
What each symbol means
| Symbol | What it stands for |
|---|---|
| α | Common-base DC current gain I_C/I_E |
| β | Common-emitter DC current gain I_C/I_B |
| I_E, I_B, I_C | Emitter, base, collector currents (A) |
When to use this
Active region, low injection; neglect leakage currents in introductory form.