The selection of the appropriate inductor depends on various factors: Inductance value, current carrying capacity, resistance (DCR), saturation current and frequency behavior. In switching power supplies, the inductance should be large enough to ensure a stable output voltage, but not so large that it leads to delays. In high-frequency applications, losses and resonance effects are crucial.
For filter circuits, the inductance must be matched to the frequencies to be suppressed. The design also plays a role: SMD components are space-saving, while leaded inductors can often withstand higher currents. Manufacturer specifications and data sheets help with the selection. If you are unsure, you can contact Rotima AG for advice - as a distributor of high-quality inductors, we have the right solution for every application.