Before revision: This gives rise to the parameter known as the loss tangent tan δ where Alternatively, ESR can be derived from frequency at which loss tangent was determined and capacitance Since the DF in a good capacitor is usually small, δ ~ DF, and DF is often expressed as a percentage.
After revision: This gives rise to the parameter known as the loss tangent tan δ where Alternatively, ESR can be derived from frequency at which loss tangent was determined and capacitance Since the DF in a good capacitor is usually small, δ ~ , and is often expressed as a percentage.