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Hello, using Zener diodes on CircuitLab, I noted that there are only 3 parameters to set: Zener Breakdown Voltage, Zener Breakdown Current @ V_z and Ohmic Series Resistence. Good, but what about the the condition of direct polarization of a Zener diode? What is the value of the Junction Built-in Potential? What is the value of the Saturation Current?

These parameters are very important. They are present between the parameters of a normal diode, but not between those of the Zener diode.

Thank you very much.