The inductors library is one of the component library types within the Component Library included in PI Expert. The Inductors Component Library contains a number of inductors suitable for differential and common mode conducted EMI filtering. Once an inductor is added to the library and included in a Component Set, you can manually change the inductors used in the EMI Filter dialog. You can also Optimize designs using a component set that includes your inductors.
To open the Inductors Component Library from the main menu, make sure all designs are closed and select the Inductors tab from Tools | Component Library.
See the Component Library topic for more information on using the component library.
Depending on the EMI filter circuit PI Expert chooses different inductor types are used. There are two types of inductors present in the inductor component library:
Common Mode (CM) Chokes
Differential Mode (DM) Chokes
For more information see EMI Filter Components: EMI Filter Inductors.
PI Expert does not allow you to modify or delete the default components. You can only view the parameters of a selected inductor by clicking the View button. You can add custom inductors to the Inductors Component Library by clicking the Add button in the Component Library dialog. You will be presented with the Inductor Parameters dialog where you can input all the relevant specifications for a CM or DM Choke. See the Component Library topic for more information on adding and editing components.
You can specify the following inductor parameters:
Type - Choose between either CM Choke or DM Choke as discussed in Inductor Types.
Rated Current - The maximum continuous RMS current the inductor is rated for, in Amps (A).
Inductance - The inductance of the inductor, in millihenries (mH).
Dc Res - The DC resistance of the inductor, in Ohms (Ω)
The following settings are common to all component type parameter dialogs:
Manufacturer - The name of the company that manufactures the component.
Part Number - The part number that uniquely identifies the component.
Click OK to add the custom inductor to the library. The 
User mark will indicate the custom inductor in the list.