Question: A customer asked my company to mark our products as “lead free,” using either the “circle slashed Pb” emblem or an E2 marking. Our products comply with European Union (EU) Restriction of Hazardous Substances (RoHS) Directive, which involves strict limitations on lead. Does that mean we can mark our products “lead free”? If so, which symbol do we use?
Answer: It’s important to first understand what these marks, as a general lead-free designation, mean for your products.
The E2 (or e2) marking is a very specific designation of lead-free finish category under J-STD-609, a standard set by JEDEC (a developer of open standards for the microelectronics industry). It defines a tin alloy with no bismuth or zinc, with certain precisely-described exceptions and uses.
The only marking that should be used to designate a product’s conformity to the EU RoHS Directive is the CE marking. The EU prohibits the use of other potentially confusing marks or symbols for this purpose.
Article is current as of 2020-05-15.