App note: Low ESR tantalum capacitors make a difference in circuit designs

App note from Vishay about how ESR in tatalum capacitors affect circuit performance. Link here (PDF)

When choosing a capacitor for any application, there are a few key characteristics that must be understood in order to analyze its suitability for the circuit. In a simple capacitor equivalent circuit model, there are three key characteristics that affect circuit performance: capacitance, equivalent series resistance (ESR), and inductance. The magnitude of these elements and how they change over temperature, frequency, and applied voltage are different for each capacitor technology.

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