I am working on updating a PCB design by adding ESD protection to the power supply. I see that an experienced engineer at my company has placed a PMOS transistor rather than a series diode, and I'm not sure why.
The PMOS has the drain connected to the power supply, gate connected to ground, and source connected to the load.
What would be the benefits to doing one over the other (PMOS vs. diode)?
Am I way off base thinking that they are interchangeable?