To simulate a part in Capture-PSpice flow you need .olb file for the component symbol to create schematic and its corresponding model file (.lib) for simulating the part.
If you have a third party PSpice model (.lib) file and need to create a symbol for the same, you can do it using model editor. To generate a symbol for a .lib file follow below steps:
5. Click Next 6. Here you can select any existing symbol with same no. of pin count to generate the symbol or you can just click Finish to get a generic symbol created by the tool. 7. You will get a log window with the status: 0 Error messages, 0 Warning messages. Click OK
Cadence Design Systems
You have generated a symbol(.olb) for a spice model(.lib), what if you have an existing capture symbol and want to associate a PSpice model to that symbol ?
Check out below link for detailed post having steps to associate a PSpice model to an existing or new part created in Capture.
Associate PSpice model to an existing or new part created in Capture
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