anybody know where I can get a good triac model for use in ltspice simulation? been looking like forever. got a diac model that works.

 

some here
https://www.littelfuse.com/technica...technical-center/spice-models.aspx#question_3
but not sure why you would bother simulating a triac circuit.

 

Add my collection of models from my web page:
http://bordodynov.ltwiki.org/
You need the lib.zip file
It has many Triac, Diac and SCR.

 

Hi, @Bordodynov
I've already download the zip file from the address you sent. all symbols are now available but when I tried to use a TRIAC from the directory :
...\lib\sym\ZZZ\Triac\TRIAC_ST
LTspice told me
File not found.
.lib Triac_st_AB.lib
^^^^^^^^^^^^^^^
I think spice model are not included so how can I add them ? should I find each component spice separately?
this is component properties, as you see there is nothing for Value:

 

Two files:

...\lib\sym\ZZZ\Triac\TRIAC_ST.asy

...\lib\sub\Triac_st_AB.lib