Mehmet Emre Doğan

CA3046 BJT

Figure 1: The circuit in LTSpice

Step 1: Add the following spice directive

 .MODEL CA3046 NPN (IS=10.000E-15 BF=145.76 VAF=100 IKF=46.747E-3
                    + ISE=114.23E-15 NE=1.4830 BR=.1001 VAR=100 IKR=10.010E-3 ISC=10.000E-15
                    + RC=10 CJE=1.0260E-12 MJE=.33333 CJC=991.79E-15 MJC=.33333 TF=277.09E-12
                    + XTF=309.38 VTF=16.364 ITF=1.7597 TR=10.000E-9)

Step 2: Name your BJT

CA3046

Step 3: Success 🎉

Figure 2: Input and output waveforms observed in virtual scope

ca3046_demo.asc