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ISO7021: ISO7021

Part Number: ISO7021

In the SLLSFAOB application note in section:

9.1.2 Intrinsic Safety The ISO7021 supports Intrinsically Safe (IS) to IS applications and carry IECEx and ATEX certifications. These devices do not currently support IS to non-IS galvanic isolation applications due to the minimum insulation thickness requirements of IEC 60079-11.

9.1.2.1 Schedule of Limitations These components are certified to comply with IEC 60079-0, Edition 7, IEC 60079-11, Edition 6, EN IEC60079-0:2018 and EN 60070-11:2012. When one of these components is used in an equipment, the component is to be soldered on a PCB inside a suitable enclosure and re-evaluated as an equipment. The operating temperature range of these components is -55°C to +85°C. The creepage and clearance distances across the isolating component have been evaluated, but the distance to other circuitry remain the responsibility of the user of the final equipment.

UL request a certification report, is it possible we can get a copy or send it directly the report to UL?

  • Hi Rob,

    Thank you for posting, and welcome to E2E! ISO7021 is certified for use in intrinsic safety (IS) to IS applications under ATEX and IECEx, certificates for which can be found in the "Technical documentation" section of its product page on TI.com and are linked below:

    IECEx CSA 20.0012U

    CSANe 20ATEX2090U

    Please feel free to save and print copies for your records or share these with UL.


    Respectfully,
    Manuel Chavez