A precise model library based on an equivalent circuit is presented and discussed. The model fully describes the light and bias behaviours of organic photodiodes realized on plastic substrates. The sub circuit modelling consists of a single SPICE LEVEL1 diode, a light power dependent series resistance, a shunt resistance. A combined light-power and voltage-controlled current source is also used to emulate the sensitivity behaviour of the photodiode. Moreover the model also permits designers to follow the technology deviations through the inclusion of worst-case corners. Finally a statistical model is included in order to allow designers run Monte Carlo simulations. (C) 2012 Elsevier Ltd. All rights reserved.