Applicable to varistors with symmetrical voltage-current characteristics for use in electronic equipment. It establishes standard terms, inspection procedures and methods of test for use in sectional and detail specifications for Qualification Approval and for Quality Assessment Systems for electronic components.
BS QC 420000:1992 history
2009BS EN 61051-1:2008 Varistors for use in electronic equipment - Generic specification
1992BS QC 420000:1992 Harmonized system of quality assessment for electronic components - Varistors for use in electronic equipment: generic specification