Restriction of the Use of Certain Hazardous Substances (RoHS)


AIT is committed to compliance with obligations to the RoHS requirements and timelines. The European Union Restriction of the Use of Certain Hazardous Substances (RoHS) 2011/65/EU directive restricts the use of harmful substances including:

  • Lead
  • Mercury
  • Cadmium
  • Hexavalent chromium
  • Polybrominated biphenyls (PBB)
  • Polybrominated diphenyl ethers (PBDE)

The AIT Hazardous Substance Reduction initiative is a voluntary program modeled after the European Union Restriction of the Use of Certain Hazardous Substances (RoHS) directive. The RoHS directive applies to eight categories of electrical and electronic equipment but excludes products in Category 9, Monitoring and Control Instruments, under which AIT products fall. By complying with the directive, AIT demonstrates a commitment to the environment, its employees, and its customers, who can use AIT products to design and develop and test their own environmentally friendly systems.


For many years, the elimination of lead in electronics resulted in “Tin Whiskers” which were more susceptible to electrical arcing in circuitry. This was especially true for electronics used in harsh environments, such as high altitude, dry air, and temperature extremes. Avionics suppliers avoided using no lead solder and components, and then transitioned to tin/lead blends. In the recent years, the manufacturing process has improved from tin/lead blends to no lead practices with great success. AIT will continue to research methods for reducing the use of certain hazardous substances in its products, and will leverage decisions based on other experts in our industry.

AIT began using no-lead components over the last decade and reduced the leaded components to strictly Ball Grid Arrays over time. RoHS compliant products have been available upon request since 2010.

AIT transitioned to 100% no-lead components manufacturing in 2012. The move to RoHS compliant products is a significant effort because it impacts nearly every step in the supply chain. AIT completed this transition over a progressive timeline as inventory is used and new product versions are released, we achieved 100% RoHS compliance at the end of 2012 for all COTS deliverable products.