Inductors are key circuit elements in many electronic designs, from power and voltage-conversion circuits to higher-frequency RF/microwave circuits. Selecting an inductor that is a good fit for a particular circuit design requires a clear understanding of inductor characteristics and how they are portrayed on product data sheets. Often referred to as coils, inductors resist changes in current by producing an electromagnetic (EM) field. Inductors are important components in many different circuits, including for chokes, filters, and impedance-matching functions.
Making an optimum choice of inductor for an application is a matter of understanding essential inductor performance parameters and how to compare them for different products on different data sheets. In this guide we review those parameters and mechanical properties.
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