Standardised PCB labelling?

[Chris1992]

I know a bit of the standardised PCB labelling letters (C is capacitor, L is inductor, U is IC) but does anyone know where I can find a more complete listing? Thanks

[AK0R]

Re: Standardised PCB labelling?

The component labels are more properly called reference designators. The base standard is ANSI Y32.16-1975 (reaffirmed 1989). This was the basis for IEEE STD 315-1975 (reaffirmed 1988). Because these are not easy to find, the following link has all the relevant information:

http://www.aqeds.com/support/rot/rot_ref_des.asp

Note that this does not prevent manufacturers from creating their own RefIDs based on the standard (e.g., Abit's use of EC for electrolytic capacitors).