Can anyone help me identify this touch sensor module from a UK home bathroom light switch?
The IC is a QT113 charge transfer touch sensor, the only writing on the board is SAT 02.
I’d like to know enough about it to order replacements.
https://sopuli.xyz/pictrs/image/256ab3e9-90b3-4e38-affe-5c716332cbc3.webp
It’s way out of my knowledge but it looks like the electrode for the touch is missing. It should be on the left corner where the “02” is printed on.
As you guessed the black thing is a transistor and should switch a led or probably a 5V relay. But please be careful since I’m guessing too xD