As far as I understand when the thyristor is triggered it should turn on and remain on unless negative voltage applied to its gate. I found the model from littelfuse website.
But I tried the following circuit with the model where I plot gate trigger voltage supply voltage and load current as follows:
And when the gate voltage is off the load current also goes off instead of reaming on aka latching.
What could be the reason the thyristor is not latching as expected here?