WOLFRAM SYSTEM MODELER
SystemModel["Modelica.Units.SI.InversePotential"]
Quantity: "InversePotential"
Unit: 1/V
NPN
Modelica.Electrical.Analog.Semiconductors
Simple NPN BJT according to Ebers-Moll with heating port
PNP
Simple PNP BJT according to Ebers-Moll with heating port