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05. February 2022
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What does RoHS stand for again?

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Prize question: Why is July 22, 2019 so special? Unless you’re a subject expert, it probably won’t mean a thing to you. But, on this day the latest revision of the 2015 RoHS Directive (Restriction of Hazardous Substances, RoHS III or RoHS 3) came into force. Our colleagues at Würth Elektronik will not have paid much attention to this date either – because the company has already been complying with this third revision of the directive for years. The latest revision restricts the use of four additional substances:

  • Bis(2-Ethylhexyl) phthalate (DEHP)
  • Benzyl butyl phthalate (BBP)
  • Dibutyl phthalate (DBP)
  • Diisobutyl phthalate (DIBP)

These plasticizers were added to the RoHS directive in 2015. Since July 22, 2019, devices in the categories 1 to 7, 10 and 11 may only use these plasticizers to a maximum of 0.1% of the homogeneous material (maximum concentration value of 0.1%).

Background information to the RoHS directive

RoHS is an EU directive that restricts the use of certain hazardous substances in electrical and electronic equipment. It regulates the use and distribution of hazardous substances in electrical equipment and electronic components. The restriction pertains to every single homogeneous material of the device – for example, plastic housing is included as well. Companies that import or sell such devices within the EU are directly affected by the directive because they are obliged to ensure compliance. Some substances used in electrical engineering are classified as environmentally hazardous. They may be toxic in certain quantities or the environment might not be able to break them down or is only able to break them down with difficulties. The RoHS directive intends to minimize the entry of these substances into the environment.

Best-known example: Leaded soldering of electronic components had to be replaced with lead-free soldering. The implementation of the RoHS directive requires a transformation of many common production processes. Today, tin-silver, tin-copper and tin-bismuth are just a few materials used as a replacement for leaded alloys.

How do you know which products are compliant? 

All our products are RoHS-compliant. They are marked with a green label showing “Compliant RoHS&REACH” next to a green tick on the packaging label. Additional icons in the datasheets also confirm compliance.

Certificate of conformity and research regarding exceptions

Many companies require an additional written RoHS III certificate of conformity. This document certifies that all manufactured components and all homogeneous subcomponent parts comply with the directive 2011/65/EU and the supplement 2015/863 of the European Parliament for the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS III directive).

According to this directive, there are exceptions for the restricted substances for specific uses.

You can find all our certificates and documents here.

Please read our official document to learn which substances in particular are covered and which products use an exemption of the RoHS directive.

You will find all important documents about material quality and compliance here.

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