# Determining Ic saturation current for common emitter voltage-divider amplifier ..#2

#### Sar1

Joined Mar 12, 2022
1
Hi
Can anyone tell me the deference between
In transistor the Ic sat =0
But
In circuit the Ic sat = the highest value???

#### Ramussons

Joined May 3, 2013
1,374
There seems to be some confusion.
What is the reason for this question?

#### Papabravo

Joined Feb 24, 2006
20,623
Hi
Can anyone tell me the deference between
In transistor the Ic sat =0
But
In circuit the Ic sat = the highest value???
A transistor cannot have a collector current of 0 and be in saturation. A collector current of 0, describes the condition of cutoff.
Try to rephrase your question in a more meaningful way.

Also, the maximum value that the collector current can have depends on the collector resistor. In saturation the collector current will be:

$$I_C\;\approx\;V_{cc}/R_c$$

It will be a little bit less than that value because, even in saturation, a typical transistor will have a Vce voltage drop 200 mV give or take a bit.

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