Triode switch Saturation degree Calculator tool

Rc (Collector resistor) collector Resistance (KΩ) 
VP (Positive Voltage) voltage (V)
Beta(min) (Current gain) Amplifying system number ,current gain
VBE (Base to emitter drop) base - emitter voltage (V)

Rb (Base resistor) base Resistance (KΩ) 

load current Saturation, the base current must be Ib=Ic/Beta.. The transistor has a different gain, so We need to Use the beta minimum to ensure Saturation.

Rb= (VP-VBE)/Ib= (VP-VBE)* Amplifying system number /Ic= (VP-VBE)* Amplifying system number *Rc/VP