Redefining Customer Service
Customer Support | Phone: 717-558-5975

RoHS Compliant PCBs 

RoHS, or the restriction of hazardous substances, focuses on six specific materials that should no longer be used, or should have limited use in printed circuit boards:

  • Lead
  • Mercury
  • Cadmium
  • Hexavalent chromium
  • Polybrominated biphenyls
  • Polybrominated diphenylether

While many of us will recognize those first few elements, it’s worth noting that the final two items on that list are plastic-specific fire retardants. It also covers four different phthalates.

Use amounts per product are governed by a max concentration amount, typically calculated by the weight of homogenous material in your PCBs.

Importance of RoHS

RoHS-compliant circuit boards are important because the products that use these PCBs will one day likely end up in a landfill or other trash reclamation process. RoHS PCBs remove many of the hazardous chemicals that pollute our landfills. They also protect the people who put together your circuit board.

MCL is one of the leading lead-free printed circuit board manufacturers in the United States, and we adhere to other RoHS compliance requirements to reduce any occupational exposure to workers during manufacturing as well as 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

An important part of being an RoHS-compliant printed circuit board manufacturer is to properly identify the PCBs and other materials that adhere to these standards. With any RoHS PCBs, we prefer to provide you with a wide variety of documentation so you know the materials you are using are proper and safe.

For RoHS-compliant circuit boards, this will include the RoHS Certification of Conformance with each shipment, and the packaging on all appropriate items will provide a RoHS/Pb-Free designations.

Compliant Surface Finishes and Materials

MCL provides RoHS and lead-free circuit boards with a variety of finishes that maintain compliance. Our surface finish alternatives allow you to maintain compliance and stay safe. Some of the finishes available to you include:

Surface Finishes Shelf Life Co-Planarity
ENIG 12 Months Yes
Immersion Silver 6-9 Months Yes
Immersion Tin 3 Months Yes
Lead Free HASL 12 Months Moderate
OSP 6-12 Months Yes

 

Substrate materials include a variety of Isola, Plyclad 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.

Why MCL?

Printed circuit boards that are RoHS-complaint matter deeply to MCL. We’ve been providing industry-leading safety and compliance for more than 10 years, and we want to ensure that every product we deliver to you is safe. Compliance is a chief concern of ours, and is offered with all of our products — along with a free assessment of your needs and award-wining customer service. Learn more.

Our commitment is to be a lead-free printed circuit board manufacturer for United States and international clients. We have a pledge to our staff, our communities and our world that RoHS compliance is important and should always govern the work we do.

PCB Glossary

  • Conductor Spacing

    The distance between adjacent edges (not centerline to centerline) of isolated conductive patterns in a conductor layer.

7703 Derry Street
Harrisburg, Pa. 17111
Phone: 717.558.5975
Fax: 717.704.8447