[EU] Looking for piezoelectric transducer with feedback contact

[eliocor]

I'm looking for some units of piezoelectric transducer disks with feedback contact like in attached pic.
Unfortunately at this date I have not yet a good idea on the required dimensions, so I need to make some tries.
Do you know some sellers which can sells them in 20-30 quantity and/or different size? Best if I can buy them in Europe.

.      thanks in advance

[CM800]

One amazingly quick search on Farnell:
Here

[eliocor]

Not my standard component supplier (I use RS) but I think it is OK.
Thanks!

[nuno]

These guys used to have them too (don't know if they still have, didn't check).

http://www.jprelec.co.uk/

[eliocor]

Thanks for your suggestion!