helisa, That's the problem - I don't know which one will fit. There is an option to buy the specific one for my laptop model, but it has sleeve bearing. So it will be as noisy, as the original one is.
And the quiet one from TP X120e which I've mentioned earlier has 3 wires instead of 4 needed and looks thicker.
No point replacing with the same fan if the problem was in a cheap and bad design sleeve bearing solution.