Turns out, I have choose part without simulation model. After reading several topics in the forum I realized this is a common problem. The truth is the _library searching_ dialog is not intuitive at all. Per instance look at the picture below:  Later I found that "Spice Symbol", "KiCad SchLibs", "Company" ... are not major categories, but just some sort of labels. Well even so, why this filter label is not shown in the breadcrumbs? It should be: **EasyEDA>SCH Libs>System>****Open Source****\>Arto Kyyhkynen Libs\>PC817SMD** Don't get me wrong, the software is great, but some parts need improvement. I think this searching module is one of them. Another desirable option is a filter for searching of parts with spice models only. This will make the things much easier for many people.

Please read (3) in (2) in [https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a](https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a)

"Another desirable option is a filter for searching of parts with spice models only." That is what the "Keyword to filter" box is for. Enter "spice" to find the spice model library. Most models are ltspice compatible but please post back with any you find that do not work. Thanks.

Simulatable PC817A/B/C/D symbols are now in the spice library. Note that these are obsolete components.