Capacitor frequency multiplier

The frequency. Since ESR can be a function of frequency, the frequency will indirectly affect the life of the capacitor. We will see that this leads to the published frequency multipliers. ... 

Thus the high-frequency ESR is about half the low-frequency ESR. Frequency multipliers should always be used, or we will overestimate the heating and underestimate the life, possibly forcing us to move to a larger capacitor size (overdesign). 

Example What is the DM noise spectrum measured at the LISN for a 5 V 15 A flyback at an input of265 VAC, with a transformer turns ratio of 20 We are using an aluminum electrolytic bulk capacitor whose datasheet states that it has a capacitance of270 p,F, a dissipation factor (tangent of loss angle) of tan S = 0.15 as measured at 120 Hz, and a frequency multiplier factor of 1.5 at 100 kHz. 

---