Broke the IR sensor socket

I was attempting to fix my cd drive, but when trying to disconnect the ir sensors ribbon cable I believe I ended up breaking off the socket from the board. I can resoder a new socket, but I don't know what it's called or instructions of specifics of any special instructions.

If you look at section 17 in the link below you see the ir cable and the socket I'm referring to.

MacBook Unibody Modell A1278 Logic Board tauschen

So 1.) is it really that important?

2.) what is the socket called?

3.) is it easy to get my hands on one.