Are you trying to replaced a thyristor to another thyristor?
Or match it to the driver or to the load?
You could look for its technical bulletin and match it to its application protocols, that if you have the name, part no., or catalog no., but if you are through with this, ask for characterization or application curve (whatever they call it) with the OEM. With the curve can judge if it is mismatched.
They used plenty of equipment to do it. To simulate actual input output parameters, and plot or tabulate its performance. They used precision instruments like oscilloscope, gate triggering supplies, actual loads of R, RL, RLC etc!
Why worry, communicate with the vendor or with OEM address your problem to them.
Thanks Julian. In most cases we are looking at replacing units and thus need to ensure that the thyristors are compatible and capable of accomplishing the task.
I am sure that investing in a test lab, would be a costly exercise.
I will use the OEM data that I have at my disposal.