Does anyone have the spice model for the 1N270 Germanium Diode? I have found several online libraries of spice models for diodes, but none of them have the 1N270. A google search didn't find it, although I found a couple of postings where the author used a model for 1N270, so I think it must exist somewhere. I am using ngspice, but I think any spice model would be usable for me.

  • \$\begingroup\$ You could use the 1N34A model, much more easily found, which is a germanium diode as well: .MODEL 1N34A D(bv=75 cjo=0.5e-12 eg=0.67 ibv=18e-3 is=2e-7 rs=7 n=1.3 vj=0.1 m=0.27). Some guy plotted both this model's characteristics and the real 1N270, and it's close enough. \$\endgroup\$ – dim Jun 24 '16 at 13:36
  • \$\begingroup\$ And, by the way, I'd avoid designing circuits with those anyway, since they're unobtainium \$\endgroup\$ – dim Jun 24 '16 at 13:45
  • \$\begingroup\$ I just bought 20... I have seen other people substituting other diodes for this one in spice, but I thought someone should have the actual model for this one. \$\endgroup\$ – ChipJust Jun 24 '16 at 14:41
  • \$\begingroup\$ 1N270 on Jameco \$\endgroup\$ – ChipJust Jun 24 '16 at 14:49
  • \$\begingroup\$ Ok... Still thinking you could use some schottky. Looking at the datasheet, it doesn't seem 1N270 performances are better than BAT41... \$\endgroup\$ – dim Jun 24 '16 at 15:04

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