Order of magnitude of Cbe capacitance

[EngIntoHW]

Hey,

The Cbe capacitance is given by:
**broken link removed**

What's the order of magnitude of that capacitance please?

Is it what's called Cibo in datasheets?

Thank you.

 

[Jony130]

In datasheet usually we don't get Cbe, but instead we get Ft and Cbc.
So if we know FT and Cbc we can easily determine Cbe
Cbe = ( gm / 2*Π*Ft) - Cbc

gm - transconductance = Ic/26mV
And Cbe is in picofarad 1pF ... 100pf