Suitable power switch solution to be used

[VEGETA]

Hello,

I am designing something which uses enclosed PCB mounted AC-DC converter module. It is IRM-20-5 from Meanwell (I will use a similar one from Recom because it is better in noise\ripple)... which is 5v @ 20 watts. Expected maximum consumption is less than 20 but the idea is the same.

I have 2 options:

1- use a hardware power rocker switch on the AC side. Typically breaks or links the live terminal to the AC-DC module while the neutral is always connected. However, this is expensive to get since such switches go for not so cheap (design is already expensive  ) and it could make issues in terms of how to mount it on the board or maybe on the panel then hand solder it which requires extra effort and assembler might not do good...etc... etc.

a cheap one is this: https://www.digikey.com/en/products/detail/e-switch/RA17131100/3778067

but how to ensure panel mount one like this is sturdy and how to make enclosure cut for it? it will require hand soldering for sure, I don't prefer screw terminals. would these wires cause any issues in terms of EMI or noise?

I like this one as well:
https://www.digikey.com/en/products/detail/e-switch/RR11132211/3778116

2- use a soft-latching solution on the 5v DC side via N or P mosfets.

This solutions allows me to use a small very cheap momentary push button which I used elsewhere, it is surface mount (can reach to top side of the assembly) and can be mounted so that it points out to the top of the enclosure. such mosfets are very cheap with low Rdson. It is used in laptops all the time. I have transistors and mosfets in the design already.



the disadvantage in my opinion are these:

A- the power module will always be on. it is most likely a flyback design, which means pulsing and so on will always be happening which is not good! I cannot use this method on AC side right?

B- where to get the DC voltage from? the idea is that the entire circuit is off therefore no MCU can be powered all the time. I would need to make everything using the 5v rail so that it cuts 5v from the entire circuit.


What solutions do you propose?