Trying to add an inductor to my parts library and not having any luck. Can anyone help?
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What does your library look like? Since inductors do not support the .model statement, do you have a .subckt library?
I’m trying to figure out how to create an Inductor library of inductors I have on-hand from Digikey, with Q ratings and self-resonance values. It would be nice not to have to type in the parameters repeatedly every time I place an inductor on my schematics.
Give us a link of how that library is, to review what option for that. Or you are saying Q and self resonance is from datasheet and you want to create your own library?
Option 2: parameters from datasheet. So far, unable to create a library of inductors.
You can make an electrical circuit that contains your favorite inductors and then copy the desired inductance into your new circuit.
Well… currently, right-clicking an inductor to link it with a library is not available in Qspice.
However, you can create a symbol template (I have attached an example for your reference) and, following @bordodynov’s recommendation, create multiple symbols (each representing an inductor P/N) and put them in a folder. Add this folder to the “Symbol & IP Browser,” and now you can drag the inductor symbol onto the schematic for use.
L-mfg-pn.qsym (614 Bytes)
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Here is an image of what I am starting to use for my transistor library. I would like to do something similar with other common parts. Right now, it’s inductors. I guess I don’t understand why the. .model command can’t be extended to all the other components used by QSpice. Thanks, guys, for your input.
.model for inductors lacks standardization in SPICE. For example, LTspice does not support .model for inductors, NGspice has .model, and Hspice uses .model to specify core parameters. LTspice can select inductors from right-click menus, but they are NOT in .model
Qspice continues to introduce new features. For instance, it did not initially support .net for network parameters but added this functionality just a few days ago. Justifications for new features typically come with reasonable and convincing reasons for why such a feature is necessary. I have successfully requested new features many times, while also having some ideas rejected.
However, such discussions do not take place in the forum but through direct communication (Qspice > Help to find Mike’s email). This forum is on the official website but functions more like a crowd support platform, more like https://groups.io/g/LTspice.
It’s strange that it’s there for capacitors but not inductors. Thanks for the info.
Well… if you refer to manufacturers like Wurth Elektronik, they create individual symbols instead of using an external library. They also do this for capacitors, even though they support .model files.
Even when the device supports .model files, setting up a right-click selection guide requires more effort. It is simpler to share symbols with everything embedded in them. This way, you don’t have to link to an external library, and a single schematic sharing will enable others to run the simulation without the need to gather all libraries from elsewhere.
Qspice-Library/PowerMagnetics/Inductors at master · WurthElektronik/Qspice-Library
since when does Wurth have a Qspice library?
This library was released around August 2025, and @RDunn was the first person in the forum to notice this library.
Wurth Elektronik Components - QSPICE - Qorvo Tech Forum
Well, Qspice demo station at PCIM 2025 is located at the WĂĽrth Elektronik booth, they have very good relationship.
https://www.linkedin.com/posts/wuerth-elektronik-group_w%C3%BCrthelektronik-pcim2025-powerelectronics-activity-7323393291612217345-7VaT/
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interesting, I also noticed they have Altium and Kicad libraries.
Nice to know.
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