Avnet (US distributor) was here today making a presentation on a service they are offering to customers (either free or for a fee, based upon level of service) that will collect and organize data for RoHS compliance. Something in their presentation stirred up a few brain cells and I decided to go to this forum to see how everyone else is approaching compliance, or demonstration of compliance.

Avnet will supply the materials content in ppm for each of the RoHS substances, along with other component data such as weight. 

I'm wondering if I really need this information. 

The directive covers "homogenous materials" as needing to be compliant and the accepted interpretation is that everything down to the plating on the leads of a resistor must be compliant. I don't see where the breakdown in ppm per part and weight are important. If I was taking the approach that my product weighed 25kg, I could have 25g of lead and be at the 100 ppm level, however, with the homogenous materials approach this doesn't matter. 

So what I am looking for is a statement from the supplier or manufacturer that the part is RoHS compliant in itself. If all of the parts I use are compliant, and my processes are compliant, then the assembly is compliant by default. 

Do I need the materials content data for anything? I have heard that some customers are asking for this, as opposed to simply asking for a statement of compliance. 

Thanks,

Blair Hogg
QA Manager
GAI-Tronics Corp

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