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Fixed resistors for use in electronic equipment - Part 8: Sectional specification: Fixed surface mount resistors
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STANDARD published on 25.8.2023
Designation standards: IEC 60115-8-ed.3.0
Publication date standards: 25.8.2023
SKU: NS-1152633
The number of pages: 214
Approximate weight : 673 g (1.48 lbs)
Country: International technical standard
Category: Technical standards IEC
IEC 60115-8:2023 is applicable to fixed surface mount resistors for use in electronic equipment. These resistors are typically described according to types (different geometric shapes) and styles (different dimensions) and product technology. These resistors have metallized terminations and are primarily intended to be mounted directly onto a circuit board. The object of this document is to specify 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. This edition includes the following significant technical changes with respect to the previous edition: a) definitions of product technologies and product classification levels of the generic specification, IEC 60115-1:2020, have been adopted; b) new style of transverse (RT) resistors has been added in 3.1.5 and 4.2.2 to cover resistors with wide terminals, which have become common in market; c) recommended test boards in 5.2.2 have been revised to fit the demands from the market for higher rated dissipation in resistors; d) test boards have been revised so that they can be set vertically instead of horizontally during specified tests to optimize the temperature rise stability, area and spacing inside the test chamber; e) Periodic-pulse high-voltage overload test of IEC 60115-1:2020, 8.3 has been added to the default test method in 5.3.8, however, the legacy test periodic-pulse overload test of IEC 60115-1:2020, 8.4 is still maintained for historical products; and more. Please see the foreword for the list of changes. L’IEC 60115-8:2023 s’applique aux resistances fixes pour montage en surface utilisees dans les equipements electroniques. Ces resistances sont generalement decrites selon des types (differentes formes geometriques), des modeles (differentes dimensions) et des technologies de produits. Ces resistances comportent des sorties metalliques et sont concues principalement pour etre montees directement sur un circuit imprime. Le present document a pour objet de specifier les caracteristiques assignees et les caracteristiques preferentielles, de choisir dans l’IEC 60115-1 les procedures d’assurance de la qualite et les methodes d’essai et de mesure appropriees, et de fixer les exigences de performance generales pour ce type de resistance. Cette edition inclut les modifications techniques majeures suivantes par rapport a l’edition precedente: a) adoption des definitions des technologies de produits et des niveaux de classification des produits de la specification generique, IEC 60115-1:2020; b) ajout d’un nouveau modele de resistances transversales (RT) en 3.1.5 et 4.2.2 afin de couvrir les resistances a larges sorties qui sont devenues courantes sur le marche; c) revision des cartes d’essai recommandees en 5.2.2 pour repondre aux demandes du marche d’une dissipation assignee superieure dans les resistances; d) revision des cartes d’essai pour pouvoir les placer a la verticale et non pas a l’horizontale pendant les essais specifies dans le but d’optimiser la stabilite de l’augmentation de temperature, la surface et l’espacement a l’interieur de la chambre d’essai; e) ajout de "l’essai de surcharge haute tension a impulsions periodiques" de l’IEC 60115-1:2020, 8.3 a la methode d’essai par defaut en 5.3.8, toutefois l’ancienne methode d’essai, "essai de surcharge a impulsions periodiques" de l’IEC 60115-1:2020, 8.4, est maintenue pour les produits historiques; et plus. Veuillez consulter lavant-propos pour la liste des modifications.
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