Diode doesn't converge

[mundodisco8]

I tried to get a model for this diode

https://docs.rs-online.com/4eb6/A700000007295371.pdf

And for the life of me, I can't get it to converge. I attach a file with the graph datapoints, so you don't have to do it.

KW_DCLMS2.EC.dat.zip

Do you have any ideas about why it wouldn't converge?

I followed the iterative process mentioned on the original stack exchange post, and arrived at IS=4.5e-27 N=1.812 RS=2.2

Also, another question. If I try to use the coefficients provided by the script, LTSpice will not model the diode. The script returns negative values for some parameters. I also had to add the units to the IS parameter (so the script would return, for example, IS=-1 and I had to type IS=1a in LTSpice for it to work)

Cheers!

[martynwheeler]

Hi, I will take a look
Might be a few days

[mundodisco8]

I totally understand. Don't feel obliged to work on this, but I just thought that you might want to improve your model a bit if this particular diode proves to be a corner case 😄.