Discussions of electrolytic capacitors historically sometimes refer to the dissipation factor, " tan ? ", in the relevant data sheets instead of " ESR ".
32.
The dissipation factor for film / foil capacitors is lower than for metallized film capacitors, due to lower contact resistance to the foil electrode compared to the metallized film electrode.
33.
Hence, the ESR or dissipation factor is a mark for the maximum power ( AC load, ripple current, pulse load, etc . ) a capacitor is specified for.
34.
Polypropylene film capacitors have relatively little temperature dependence of capacitance and dissipation factor, so that they can be applied in frequency-stable Class 1 applications, replacing Class 1 ceramic capacitors.
35.
For electrolytic capacitors, for historical reasons the dissipation factor " tan ? " will sometimes be specified in the relevant data sheets, instead of the " ESR ".
36.
However the numeric value of the dissipation factor, measured at the same frequency, is independent on the capacitance value and can be specified for a capacitor series with a range of capacitance.
37.
For this reason, a capacitor's loss tangent is sometimes stated as its " dissipation factor ", or the reciprocal of its " quality factor Q ", as follows
38.
Silsesquioxane resins have also been used for these applications because they have high dielectric strengths, low dielectric constants, high volume resistivities, and low dissipation factors, making them very suitable for electronics applications.
39.
The dissipation factor " tan ? " is used for capacitors with very low losses in frequency determining circuits or resonant circuits where the reciprocal value of the dissipation factor is called the bandwidth.
40.
The dissipation factor " tan ? " is used for capacitors with very low losses in frequency determining circuits or resonant circuits where the reciprocal value of the dissipation factor is called the bandwidth.
