Historical
IEC 61051-1 Ed. 2.0 b:2007
Varistors for use in electronic equipment - Part 1: Generic specification
IEC 61051-1:2007 is applicable to varistors with symmetrical voltage current characteristics for use in electronic equipment. This second edition cancels and replaces the first edition published in 1991 and constitutes a minor revision related to tables, figures and references.
International Electrotechnical Commission [iec]