Not all Spice Symbols in EasyEDA have a spice model in either the EasyEDA or the LTspice libraries associated with them.
As described in the Simulation Tutorial, it is possible to associate a spice model to a spice symbol by pasting the text of the spice model into the simulation schematic and setting the text type to spice.
For a design with several different devices each with their own model this can lead to a very untidy schematic.
There is however a tidier way to associate a spice model to a spice symbol.
Open the symbol in the Spice Symbol Editor;
Edit > Spice Model...




which opens:

• This works for .subckt based models as long as the symbol spice prefix is set to X.
• This does not work for multi-part spice symbols.
• I think this works for .model based models if you change the symbol spice prefix from X to the appropriate prefix for the model type.
• Even though the spice symbol may be visible to all other users, a spice model added in this way is only associated with your local Workspace copy of the symbol.

There are two ways to open any symbol into the Symbol Editor:

1. If it's in the EElib (now called the Commonly Used Library), double-left-click on the symbol in the left hand panel;
2. Search, select it then click Edit in the Libraries tool.

To edit a Spice Symbol you must be in SIM mode.

• For more simulation help see:

https://docs.easyeda.com/en/Simulation/Headings/index.html models