IEC 60747-9:2019 specifies product specific standards for terminology, letter symbols, essential ratings and characteristics, verification of ratings and methods of measurement for insulated-gate bipolar transistors (IGBTs).
This third edition includes the following significant technical changes with respect to the previous edition:

* reverse-blocking IGBT and its related technical contents have been added,
* reverse-conducting IGBT and its related technical contents have been added,
* some parts of the previous edition have been amended, combined or deleted.