IEC 60384-23-2005 pdf – Fixed capacitors for use in electronic equipment – Part 23: Sectional specification – Fixed surface mount metallized polyethylene naphthalate film dielectric DC capacitors

IEC 60384-23-2005 pdf – Fixed capacitors for use in electronic equipment – Part 23: Sectional specification – Fixed surface mount metallized polyethylene naphthalate film dielectric DC capacitors.
1 General 1.1 Scope This part of IEC 60384 is applicable to fixed surface mount capacitors for direct current, with metallized electrodes and polyethylene naphthalate dielectric for use in electronic equipment. These capacitors have metallized connecting pads or soldering strips and are intended to be mounted directly onto substrates for hybrid circuits or onto printed boards. These capacitors may have “self-healing properties” depending on conditions of use. They are primarily intended for applications where the AC component is small with respect to the rated voltage. Capacitors for radio interference suppression are not included, but are covered by IEC 60384-14. 1.2 Object The object of this standard is to prescribe preferred ratings and characteristics and to select from IEC 60384-1 (1999), the appropriate quality assessment procedures, tests and measur- ing methods and to give general performance requirements for this type of capacitor. Test severities and requirements prescribed in detail specifications referring to this sectional specification shall be of equal or higher performance level, lower performance levels are not permitted. 1.3 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60062: Marking codes for resistors and capacitors IEC 60063:1963, Preferred number series for resistors and capacitors Amendment 1 (1967) Amendment 2 (1977) IEC 60068-1, Environmental testing –Part 1: General and guidance 1 IEC 60384-1:1999, Fixed capacitors for use in electronic equipment – Part 1: Generic specification IEC 60410: Sampling plans and procedures for inspection by attributes ISO 3:1973, Preferred numbers – Series of preferred numbers
1.4 Information to be given in a detail specification Detail specifications shall be derived from the relevant blank detail specification. Detail specifications shall not specify requirements inferior to those of the generic, sectional or blank detail specification. When more severe requirements are included, they shall be listed in 1.9 of the detail specification and indicated in the test schedules, for example by an asterisk. NOTE The information given in 1.4.1 may, for convenience, be presented in tabular form. The following information shall be given in each detail specification and the values quoted shall preferably be selected from those given in the appropriate clause of this sectional specification. 1.4.1 Outline drawing and dimensions There shall be an illustration of the capacitor as an aid to easy recognition and for comparison of the capacitor with others. Dimensions and their associated tolerances, which affect interchangeability and mounting, shall be given in the detail specification. All dimensions shall preferably be stated in millimetres, however, when the original dimensions are given in inches, the converted metric dimensions in millimetres shall be added. Normally, the numerical values shall be given for the length, width and height of the body. When necessary, for example when a number of items (sizes and capacitance/voltage ranges) is covered by a detail specification, the dimensions and their associated tolerances shall be placed in a table below the drawing. When the configuration is other than described above, the detail specification shall state such dimensional information as will adequately describe the capacitor. 1.4.2 Mounting The detail specification shall give guidance on methods of mounting for normal use. Mounting for test and measurement purposes (when required) shall be in accordance with 4.1.
1.6.2 A cause de leur petite taille, il n’est généralement pas possible d’apposer autant de marquages sur les condensateurs pour montage en surface que sur des composants plus grands en pratique normale. Tout marquage apposé doit être bien lisible et doit être choisi parmi les éléments de 1.6.1. NOTE Il convient que les marquages contiennent les points a), f) et h) des éléments de 1.6.1. Il convient d’éviter de marquer deux fois la même information sur les condensateurs. 1.6.3 L’emballage contenant le(s) condensateur(s) doit être clairement identifié avec toutes les informations énumérées en 1.6.1. 1.6.4 Tout marquage supplémentaire doit être apposé de façon à ce qu’aucune confusion ne soit possible. 2 Valeurs limites et caractéristiques préférentielles 2.1 Caractéristiques préférentielles Les valeurs indiquées dans les spécifications particulières doivent de préférence provenir de ce qui suit: 2.1.1 Catégories climatiques préférentielles Les condensateurs pour montage en surface couverts par la présente spécification sont classés par catégories climatiques conformément aux règles générales indiquées dans la CEI 60068-1. La température de catégorie inférieure et supérieure ainsi que la durée de l’essai continu de chaleur humide doivent être sélectionnées parmi les suivantes: Température de catégorie inférieure: -55 °C, -40 °C et -25 °C.