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A4018_ELH • 2/10/2016

Snap-In Aluminum Electrolytic Capacitors – ELH Series, +85ºC

Equivalent Series Inductance (ESL)

Equivalent Series Inductance or Self Inductance results from the terminal configuration and internal design of the capacitor.

Equivalent

Series

Capacitance

(ESC)

Equivalent

Series

Resistance

(ESR)

Equivalent

Series

Inductance

(ESL)

Capacitor Equivalent Internal Circuit

Equivalent Series Resistance (ESR)

Equivalent Series Resistance is the resistive component of the equivalent series circuit. ESR value depends on frequency and

temperature and is related to the tan δ by the following equation:

ESR = Equivalent Series Resistance (Ω)

ESR =

tan δ

tan δ = Dissipation Factor

2πf ESC ESC = Equivalent Series Capacitance (F)

f = Frequency (Hz)

Tolerance limits of the rated capacitance must be taken into account when calculating this value.

ESR Change vs. Frequency

(typical value)

Frequency (kHz)

ESR Change vs. Temperature

(typical value)

Temperature (°C)