What is Microsemis definition of a RoHS / Pb-free product?
A. Microsemi’s considers a device to be RoHS / Pb-free if the lead finish contains no Pb (lead) or Pb bearing materials purposely introduced during the manufacture of the product. Each device will contain less than 0.1% Pb in any homogeneous material. A small number of power devices in the DD TO-263, DT TO-252 and DF MO-169 or P TO-220 packages use a high Pb soft solder die attach. These devices will not be RoHS / Pb-free by the above definition but will be RoHS compatible and rely on the high Pb (>85%) exemption.