I am getting the following error message from LTSPICE: Can't find definition of model for BJT's. This warning appears for two models that I downloaded. One is for an OnSemi MPSA06 model, ( NPN ), and for a TIP30A ( PNP ) model. I have both of the models placed into both the project folder and into the C:\Program Files\LTC\LTspiceXVII\lib\sub folder as well. I added the SPICE .lib directive for each part to the schematic sheet, with the full file location and name including the extension. ( I have also tried the .inc directive ). I also updated the component attributes for each component's Value with the name of the internal model name of each model file. But I am still getting the " Can't find definition of model" error message for both BJT's. Not sure what I am doing wrong. The netlist is showing both the models associated with each part and it also shows the .lib or .inc statements associated with each model. Additionally I can open each model from within LTSPICE. Perhaps these models need to be packaged into a subcircuit for use with the generic NPN or PNP from the parts placement pulldown menu??
Any help is greatly appreciated!
Thanks, Jim Lund
Here's a video for how to add 3rd party models to LTspice - let me know if you're still having trouble after watching this.
Also, if you're still having trouble, please provide more information about your schematic - attaching your schematic might be helpful, or screenshots. Also, there is a user-run forum at groups.yahoo.com/.../messages
Have you noticed that the model name has a Q in front, Qmpsa06 and Qtip30.That means you should set its values in the schematic to Qmpsa06 and Qtip30.
I recommend to use the PPSICE modles from Onsemi.
.MODEL Qmpsa06 npn+IS=6.03149e-15 BF=559.138 NF=0.841146 VAF=996.086....
.MODEL Qtip30 pnp+IS=1e-09 BF=192.893 NF=0.85 VAF=49.329...
Yes, I have watched it multiple times. I am doing everything it says to do.
Yes, I noticed that and have done just that. The MPSA06 model is off of the ONSEMI website. The TIP30A is off of the following website: http://www.techlib.com/misc/spice.htm. I will try simulating at home this weekend. Not sure what else it could be. Likely something very simple that I am overlooking.
Did you also see Helmut's suggestion below?
It would help if you could attach your schematic, and the models you are using.