This slide and the next show simple simulations using eight different software platforms where a dynamic NTC thermistor model is introduced to temperature by an external voltage (used to model the temperature applied to the component) via an RC network representing the thermal inertia of the component (in fact the response time). If a temperature step from 25°C to 85°C is applied to the components, the internal temperature will change exponentially with a constant that is equal to the response time. Importantly, the designer has the option to tune the value of the RC constant to fit any application (for example, six seconds in still air, three seconds in stirred air, and one second in oil).