Abstract: Methods, systems, and techniques for estimating a transient diffusion potential of a diffusive property involve modeling, as a circuit, diffusive behavior of a diffusion region and then simulating operation of the circuit to estimate the transient diffusion potential at a location in the diffusion region by determining circuit potential at a node in the circuit that corresponds to the location in the diffusion region. The circuit has steady-state and transient portions that model the steady-state and transient behavior of the diffusion region, respectively. The transient behavior is modeled using a capacitive circuit element. The diffusive property diffuses linearly within the diffusion region and generation of the diffusive property is distributed within the diffusion region.