From 2 January 2013, the use of lead is permitted in PZT-based dielectric ceramic materials for capacitors which are part of integrated circuits or discrete semiconductors. This takes effect by way of an exemption adopted by the Commission to the Directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment (“RoHS Directive”). The Commission determined that the substitution of lead in these applications is still technically impracticable.

The full text of the exemption is available here:

http://eurlex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2012:348:0016:0017:EN:PDF