IEC 60747-5-7:2016 specifies the terminology, the essential ratings and characteristics as well as the measuring methods of photodiodes (hereinafter referred to as "PDs") and phototransistors (hereinafter referred to as "PTs"). This standard replaces the clauses for photodiodes and phototransistors described in IEC 60747-5-1, IEC 60747-5-2 and IEC 60747-5-3, including their amendments. IEC 60747-5-1, IEC 60747-5-2 and IEC 60747-5-3, including their amendments, are replaced by the publications of IEC 60747-5-4, IEC 60747-5-5, IEC 60747-5-6 and IEC 60747-5-7 as a result of reconstruction.