If models are used, the model name and parameters are given on a .MODEL record. Each model to be used in the circuit description must have an associated .MODEL record and must be named and defined before the .CKT section of the input file. The structure of the .MODEL record is :
.MODEL name F1, F2, ...
where 'name' is the text name given to the model and is referred to from the circuit description and F1, F2, ... are the parameters for the model.
Models are available for op-amps, field effect transistors, and bipolar junction transistors.
.MODEL records may span more than one line by using a multiple line record. Multiple line records are indicated by ending each line with the ``\'' character. Comments and .INClude records are not allowed within a multiple line record. See the examples below.