Here we show the effect of using a zener diode on a highside P-Channel MOSFET application. This is just to show transient overvoltage protection that occurs between the gate the source. This would not necessarily help sustained overvoltage conditions because there are other complexities with using highside PMOS implementations (we'll talk about that in another video).
![](https://s2.save4k.ru/pic/V18buF-qPIA/maxresdefault.jpg)