Inductance is the term used to describe the electrical capacity of an inductor. It is directly proportional to the rate of change of the current through the inductor. Direct current resistance, often abbreviated as DCR or RDC, is the resistance placed on the circuit by the inductive component. This must be considered when determining the electrical energy used as heat when applying this component. Saturation current indicates the current at which the inductance value of the part will decrease a certain percentage below the suggested characteristic. This reduction threshold is typically 40%. Temperature rise current indicates the current level where the temperature of the part will rise above a set threshold. This is proportional to the DCR of the part and is usually a 40°C rise over the ambient temperature.