Turn-on voltage Uon: The critical voltage at which the diode begins to conduct is called the turn-on voltage Uon.
Reverse current: When the value of the reverse voltage applied by the diode is large enough, the reverse current generated is IS.
Maximum rectified current IF: refers to the maximum DC current that the diode is allowed to pass through for a long time.
Maximum reverse working voltage UR: Refers to the highest allowable reverse voltage for normal use of the diode.
Zener diode: Zener diode is a surface contact crystal diode made of silicon material. When the value of the reverse voltage applied to the zener tube is large to a certain extent, it will break down.
