Self Resonant Frequency,. Within any inductive device a finite amount of stray capacitance exists, known as distributed capacitance, it can be electrically represented as a capacitor in parallel with the inductor. This resultant LC circuit is in essence a parallel tuned circuit and as such the inductance resonates with its own distributed capacitance. The SRF value is important because at frequencies near the SRF the inductor is inherently unstable and is susceptible to extreme variations in its inductive value due to small operating signal frequency changes. If used at operating frequencies above the SRF the capacitive losses predominate and electrically the inductor reacts as if it were a capacitor.