What do the labels on electrical components mean?

[deadrxn24]

Hey,

On the back of the circuit boards in most electronics there are labels for the parts. I know a few of them:

R - Resistor
C - Capacitor
L - Inductor
D - Diode
Q - Transistor (Is this all transistors or just BJTs?)
U - Integrated Circuits

However, there are some that I don't recognize. The particular one I am looking at is labeled M1 on the board, but there is an F0 (either that or E0) on the component (see the picture). We used M for MOSFETs in my EE classes but I am pretty certain that it isn't a MOSFET. I thought this might be a fuse, but I'm not sure.

Thanks In Advance!

Also, if there is a link with the component labels, I would appreciate the resource.

 

[deadrxn24]

Answering my own question, it appears that it was a fuse of some sort.