What's the smallest switch that can switch 1 mA of mains AC?

[Morad Tamer]

I'm trying to make a mains AC sensor through a big resistive ladder with output to input ratio of 1:10 (4*100k then a 47k). this then is passed over to a rectifier than a capacitor then to a mosfet which would pull some digital IO low when the mains AC input is present.
The whole circuit uses about 1 mA of current.
Now, is there a switch capable of handeling 250VAC mains that is not quite bigger than the circuit it self?
I'm using 0805 resistors and SOT23 packages. I initially thought of using a DIP switch but found none rated for more than 50VDC.

[Benta]

I understand your "mains present" sensor, but don't understand the switch. Where does that come in?
The main thing about mains switches is preventing injuring or killing people, so a certain size for isolation and creepage is necessary.

[NiHaoMike]

How about an optoisolated triac driver?

[mariush]

you could probably use  a neon bulb and a small solar cell  ... or rectify with diode followed by resistor to drop some voltage and smooth with capacitor, into an optocoupler.

[PCB.Wiz]

I initially thought of using a DIP switch but found none rated for more than 50VDC.

You need to clarify how and when the user activates this mechanical switch ?
Since you looked at DIP SW, it looks like you do not want momentary.

[dmendesf]

An Optomos Relay:

https://www.digikey.com/en/products/filter/solid-state-relays-ssr/183?s=N4IgTCBcDaIPIAcAuB7AtigzgAgE4FMAbAQwE9MQBdAXyA