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equivalent series inductance (ESL)

Equivalent Series Inductance (ESL) means equivalent series inductance. This refers to the inductances that are part of the impedance of

electronic components. For example, the inductance of the connecting wires or that of connecting wires within the component. Generally, when considering components, one assumes that they are ideal and have only the capacitance, inductance, or resistance

that is shown.However, all electronic components have lead wires that have unwanted inductance. This means that the component has inductive properties in addition to its intrinsic properties.

Block diagram of ESR resistance and ESL inductance

Block diagram of ESR resistance and ESL inductance

In the case of capacitors, this Equivalent Series Inductance becomes noticeable at high frequencies. This is due to the fact that the capacitive resistance drops at 10 dB/decade

as the frequency increases, while the inductive resistance increases at 10 dB/decade. To reduce this interference at higher frequencies, the equivalent series inductance must be minimized. With the Low Inductance Chip Capacitor (LICC), there is a special SMD design with extremely low equivalent series inductance (ESL).

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Englisch: equivalent series inductance - ESL
Updated at: 17.01.2014
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Translations: DE