First, some terminology. For those of you who know all the acronyms, skip to the part marked with ~’s.
PCB – Printed Circuit Board. Very vital part of electronics. Usually a fiberglass or other non-conductive laminate, with strips of conductive metals glued to the top & bottom and running through the inside. (Yes, I know that’s not very rigorous. Please don’t flame me if you are a PCB engineer.)
RoHS – Restriction on Hazardous Substances. A European Union directive.
PBB – PolyBrominated Biphenyls. A type of flame retardants used in plastics, banned by RoHS because it contains bromine.
PBDE – PolyBrominated Diphenyl Ethers. Another type of flame retardants used in plastics, banned by RoHS because it contains bromine.
TBBPA – TetraBromoBisphenol A. A type of flame retardant used in PCBs, it contains bromine but is NOT banned by RoHS.