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IEC 60115-4-ed.3.0
Fixed resistors for use in electronic equipment - Part 4: Sectional specification: Power resistors for through hole assembly on circuit boards (THT) or for assembly on chassis
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STANDARD published on 29.11.2022
The information about the standard:
Designation standards: IEC 60115-4-ed.3.0
Publication date standards: 29.11.2022
SKU: NS-1092626
The number of pages: 113
Approximate weight : 370 g (0.82 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 60115-4-ed.3.0 :
IEC 60115-4:2022 relates to resistors having a rated dissipation typically greater than 1 W up to and including 1 000 W for use in electronic equipment. This document is applicable to fixed power resistors with a maximum surface temperature (MET) higher than the preferred upper category temperature (UCT) of 200 °C. NOTE Heat sink resistors, i.e. resistors which in their operation depend on being mounted on a dedicated heat sink, owing to their special temperature conditions, are covered by a special sectional specification (under consideration at the time of publication). These resistors are typically described according to types (different geometric shapes) and styles (different dimensions), and product technology. The object of this document is to define preferred ratings and characteristics and to select from IEC 60115-1 the appropriate quality assessment procedures, tests and measuring methods and to give general performance requirements for this type of resistor. NOTE SMD resistors are covered by IEC 60115-8, regardless of their dissipation. This edition includes the following significant technical changes with respect to the previous edition: the definitions of product technologies and product classification levels of the generic specification, IEC 60115-1:2020, have been adopted; a basis for the optional specification of the lead eccentricity of axial leaded resistors has been amended in 4.2; the period-pulse high-voltage overload test of IEC 60115-1:2020, 8.3 has been adopted as default test method in 5.3.9, thereby replacing the legacy test periodic-pulse overload test of IEC 60115-1:2020, 8.4; the revised solderability test of IEC 60115-1:2020, 11.1 has been adopted in 5.3.22 and 5.3.23; the combined solvent resistance test of IEC 60115-1:2020, 11.3 has been adopted in 5.3.25; the endurance at room temperature test of IEC 60115-1:2020, 7.2 has been reworked and adopted in 5.3.5; the single-pulse high-voltage overload test of IEC 60115-1:2020, 8.2, applied with the pulse shape 10/700 in 5.3.8, is complemented with the optional alternative provided by the pulse shape 1,2/50 in 5.4.1. climatic tests for operation at low temperature of IEC 60115 1:2020, 10.2, and for damp heat, steady state, accelerated of IEC 60115-1:2020, 10.5, have been adopted as optional tests in 5.4.5. and 5.4.6, respectively; inclusion of an optional flammability test as 5.4.8; new guidance is provided in 6.2 on the presentation of stability requirements with their permissible absolute and relative deviations; acceptance criteria for the visual inspection have been added in 6.5 and in Annex B; visual inspection for the primary and proximity packaging has been added in 6.5.3 and in 7.2; the periodical evaluation of termination platings has been added as a new topic of quality assessment in 9.8; the revised test clause numbering of IEC 60115-1:2020 has been applied; a new Annex C has been added to summarize workmanship requirements for the assembly of leaded power resistors, e.g. as given in the prior IEC 61192 series of standards; the informative Annex F on radial formed styles has been amended with details on a formed Z-bend style for surface-mount assembly; furthermore, the informative Annex X has been ad L’IEC 60115-4:2022 couvre les resistances ayant un pouvoir de dissipation assignee generalement superieur a 1 W et pouvant atteindre 1 000 W, qui sont utilisees dans les equipements electroniques. Le present document s’applique aux resistances de puissance fixes, dont la temperature de surface maximale (qui correspond a la MET) est superieure a la temperature maximale de categorie (UCT) preferentielle de 200 °C. NOTE Les resistances a radiateur, c’est-a-dire les resistances dont le fonctionnement impose qu’elles soient montees sur un radiateur reserve, en raison de leurs conditions de temperature particulieres, sont couvertes par une specification intermediaire qui leur est reservee (a l’etude a la date de publication du present document). Ces resistances sont generalement decrites selon des types (differentes formes geometriques), des modeles (differentes dimensions) et des technologies de produit. Cette edition inclut les modifications techniques majeures suivantes par rapport a l’edition precedente: a) adoption des definitions des technologies de produit et des niveaux de classification des produits de la specification generique, IEC 60115-1:2020; b) amendement en 4.2 d’une base pour la specification facultative de l’excentricite des broches, pour les resistances a broches axiales; c) integration en 5.3.9, en tant que methode d’essai par defaut, de l’"essai de surcharge haute tension a impulsions periodiques" donne dans l’IEC 60115-1:2020, 8.3, entrainant le d) remplacement de l’ancien "essai de surcharge a impulsions periodiques" donne dans l’IEC 60115-1:2020, 8.4; d) integration en 5.3.22 et 5.3.23 de la revision de l’essai de brasabilite de l’IEC 60115-1:2020, 11.1; e) integration en 5.3.25 de l’essai de resistance au solvant combine de l’IEC 60115-1:2020, 11.3; f) refonte et integration en 5.3.5 de l’essai d’endurance a temperature ambiante de l’IEC 60115-1:2020, 7.2; g) ajout de la forme d’ondes des impulsions 1,2/50, specifiee en 5.4.1, comme variante facultative en 5.3.8 a l’"essai de surcharge haute tension a une seule impulsion" donne dans l’IEC 60115-1:2020, 8.2, applique avec la forme d’ondes des impulsions 10/700; h) integration en tant qu’essais facultatifs des essais climatiques relatifs au "fonctionnement a basse temperature" de l’IEC 60115-1:2020, 10.2, et a "chaleur humide, essai continu, accelere" de l’IEC 60115-1:2020, 10.5, respectivement en 5.4.5 et 5.4.6; i) ajout d’un essai facultatif d’inflammabilite en 5.4.8; j) ajout de nouvelles recommandations en 6.2 sur la presentation des exigences de stabilite, ainsi que leurs ecarts absolus et relatifs admis; k) ajout de criteres d’acceptation pour l’examen visuel en 6.5 et a l’Annexe B; l) ajout d’un examen visuel pour l’embal
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