I am simulating the above circuit, by theory Ic = Hf * Ib. When i simulate a circuit such as this in LTspice, this formula isn't holding up.. For instance in my LTspice, im using a 2N3904 NPN, Vcc=6V Rb=300K and Rc=1k..
Ib=17.67uA and Ic=5.23mA(in sim). The model has a Bf=300, so Ib*300 = 5.3mA, albeit close, but still some error that id like to account for?
My 2N3904 model .model 2N3904 NPN(IS=1E-14 VAF=100 Bf=300 IKF=0.4 XTB=1.5 BR=4 CJC=4E-12 CJE=8E-12 RB=20 RC=0.1 RE=0.1 TR=250E-9 TF=350E-12 ITF=1 VTF=2 XTF=3 Vceo=40 Icrating=200m mfg=Philips).