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Vce, This is the maximum voltage that the transistor can withstand between its collector (c) and emitter (e), it realistically sets the maximum power supply voltage, though with careful design the PSU voltage can be above this figure, but watch out!!
Frank
Ok
let me tell u more...
-It is important because we must know the exact details of bias point.We have to know the least Possible Value of vce for being in saturation region.
-For making current sources , we like to have the most swing of the voltage . in most of the times Vce appoints this value called "Vmin" . Look at this :
-We always like to reduce the power dissipated on transistors.Ok?now imagine we wanna use a circuit the has the maximum yield (least power dissipation) . So it is obvious that we have to know Vce (p=Vce*I)
for example we wanna choose between bc107,q2n2222 . well. we go and check datasheets.
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