How do I convert the fuse current rating to the i2t value? For example, in this circuit simulator, when adding a fuse, the only values that can be specified are the i2t value and resistance. The fuse I am attempting to simulate says 32mA.
You simply get these parameters from the fuse data sheet or compute from the curves.
Here I gave you some fuses to blow and sliders to increase the surge load.
Now you enter 0.000047 for i2t and compute R from 3200mV/32mA = 100 then add your load and watch the fuse get hot. Time sample around 500us for real-time .