IEC 60747-6:2016 provides standards for the following types of discrete semiconductor devices: - reverse-blocking triode thyristors; - reverse-conducting (triode) thyristors; - bidirectional triodethyristors (triacs); - turn-off thyristors. This edition includes the following significant technical changes with respect to the previous edition: a) Clauses 3, 4, 5, 6, and 7 were amended with some deletions of information no longer in use or already included in other parts of the IEC 60747 series, and with some necessary additions; b) some parts of Clause 8 and Clause 9 were moved and added to Clause 7 of this third edition; c) Clause 8 and 9 were deleted in this third edition; d) Annex A was deleted. This publication is to be read in conjunction with IEC 60747-1:2006.