ROHS COMPLIANT CIRCUIT BOARDS
KINGSIGNAL'S ROHS COMPLIANT CIRCUIT BOARDS
- Lead
- Mercury
- Cadmium
- Hexavalent chromium
- Polybrominated biphenyls
- Polybrominated diphenylether
Types Of PCB Solder Mask Colors
Circuit boards that are RoHS compliant are vital because the electronics that incorporate such PCBs will at some time find their way to a dump or garbage recycling facility. RoHS PCBs have subsequently done away with the compile of risky materials that contaminate our planet’s dumpsites. They also safeguard the persons who assemble your circuit board.
MCL is one of the leading lead-free printed circuit board manufacturers and we make sure to follow the RoHS compliance of reducing exposure to the employees during manufacturing or recycling.
| RoHS Restricted Materials | |
| Banned Substance | RoHS LIMIT: MCV* PPM |
| Lead (Pb) | 1000 |
| Mercury (Hg) | 1000 |
| Cadmium (Cd) | 100 |
| Hexavalent Chromium (Cr+6) | 1000 |
| Polybrominated Biphenyl (PBB) | 1000 |
| Polybrominated Diphenyl Ether (PBDE) | 1000 |
Identification of RoHs Boards
One of the significant aspects of becoming an organization that follows the RoHS compliance is that it has to accurately label the printed circuit boards and other material that meets or follows these guidelines. Like any other RoHS PCBs, we would rather offer you as much documents as possible so you are sure that the materials you are using are appropriate and harmless.
With regard to circuit boards that are compliant with RoHS, this will comprise the RoHS Certificate of Conformance to each shipment and the packaging of all relevant items will bear the RoHS/Pb-Free labels.
RoHs Compliant Surface Finishes and Materials
ROHS and lead free circuit boards with various finishes are also available from MCL without the compliance being an issue. The available choices of surface finish help one continue to meet the necessary requirements and remain safe. Some of the finishes available to customers include:
| Surface Finishes | Shelf Life | Co-Planarity |
| ENIG | 12+ Months | Yes |
| Immersion Silver | 6-12 Months | Yes |
| Immersion Tin | 3-6 Months | Yes |
| Lead Free HASL | 12+ Months | Moderate |
| OSP | 6-12 Months | Yes |
Substrate materials include a variety of Isola, Polyclad Rogers, Getek and Nelco products, for varied electrical performances and loss rates. Most RoHS-compliant PCBs can use multiple options from each of these lists.
