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IEC/TR 61191-8 Ed. 1.0 en:2021

Printed board assemblies - Part 8: Voiding in solder joints of printed board assemblies for use in automotive electronic control units - Best practices
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International Electrotechnical Commission Logo

IEC/TR 61191-8 Ed. 1.0 en:2021

Printed board assemblies - Part 8: Voiding in solder joints of printed board assemblies for use in automotive electronic control units - Best practices

PUBLISH DATE 2026
IEC/TR 61191-8 Ed. 1.0 en:2021
Printed board assemblies - Part 8: Voiding in solder joints of printed board assemblies for use in automotive electronic control units - Best practices
IEC TR 61191-8:2021(E) gives guidelines for dealing with voiding in surface-mount solder joints of printed board assemblies for use in automotive electronics. This technical report focuses exclusively on voids in solder joints connecting packaged electronic or electromechanical components with printed boards (PBs). Voids in other solder joints (e.g. in a joint between a silicon die and a substrate within an electronic component, solder joints of through-hole components, etc.) are not considered. The technical background for the occurrence of voids in solder joints, the potential impact of voiding on printed board assembly reliability and functionality, the investigation of voiding levels in sample- and series-production by use of X ray inspection as well as typical voiding levels in different types of solder joints are discussed. Recommendations for the control of voiding in series production are also given. Annex A collects typical voiding levels of components and recommendations for acceptability.
SDO IEC: International Electrotechnical Commission
Document Number IEC/TR 61191
Publication Date April 1, 2026
Language en - English
Page Count
Revision Level 1.0
Supercedes
Committee 91
Publish Date Document Id Type View
April 1, 2026 IEC/TR 61191-8 Ed. 1.0 en:2021 Revision
June 5, 2024 Revision