BS EN 60384-8:2015 pdf free download Fixed capacitors for use in electronic equipment Part 8: Sectional specification: Fixed capacitors of ceramic dielectric, Class 1
1.1Scope
This part of lEC 60384 is applicable to fixed capacitors of ceramic dielectric with a definedtemperature coefficient (dielectric Class 1), intended for use in electronic equipment, includingleadless capacitors but excluding fixed surface mount multilayer capacitors of ceramicdielectric, which are covered by lEC 60384-21 (Class 1).
Capacitors for electromagnetic interference suppression are not included, but are covered bylEc60384-14.
1.2Object
The object of this standard is to prescribe preferred ratings and characteristics and to selectfrom lEC 60384-1:2008, the appropriate quality assessment procedures, tests and measuringmethods and to give general performance requirements for this type of capacitor. Testseverities and requirements prescribed in detail specifications referring to this sectionalspecification shall be of equal or higher performance level because lower performance levelsare not permitted.
1.3 Normative references
The following documents, in whole or in part, are normatively referenced in this document andare indispensable for its application.For dated references,only the edition cited applies.Forundated’references,the ‘latest edition of the referenced document (including anyamendments) applies.
lEC 60063:1963,Preferred number series for resistors and capacitorslEC 60063:1963/AMD1:1967 IEC60063:1963/AMD2:1977
lEC 60068-1:2013,Environmental testing – Part 1: General and guidance
IEC 60384-1:2008,Fixed capacitors for use in electronic equipment – Part 1: Genericspecification
IEC 61193-2:2007,Quality assessment systems – Part 2: Selection and use of sampling plansfor inspection of electronic components and packages
ISO 3:1973,Preferred numbers – Series of preferred numbers
1.4lnformation to be given in a detail specification
1.4.1General
Detail specifications shall be derived from the relevant blank detail specification.
Detail specifications shall not specify requirements inferior to those of the generic, sectionalor 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 anasterisk.
The information given in 1.4.2 may for convenience, be presented in tabular form.
The following information shall be given in each detail specification and the values quotedshall preferably be selected from those given in the appropriate clause of this sectionalspecification.
1.4.2Outline drawing and dimensions
There shall be an illustration of the capacitor as an aid to easy recognition and for comparisonof 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 inmillimetres,however when the original dimensions are given in inches, the converted metricdimensions in millimetres shall be added.
Normally, the numerical values shall be given for the length of the body, the width and heightof the body and the wire spacing, or for cylindrical types, the body diameter, and the lengthand diameter of the terminations. When necessary,for example when a number of items(capacitance values/voltage ranges) are covered by a detail specification, the dimensions andtheir associated tolerances shall be placed in a table below the drawing.
When the configuration is other than described above, the detail specification shall state suchdimensional information as will adequately describe the capacitors.When the capacitor is notdesigned for use on printed boards, this shall be clearly stated in the detail specification.
1.4.3 Mounting
The detail specification shall specify the method of mounting to be applied for normal use andfor the application of the vibration and the bump or shock tests.The design of the capacitormay be such that special mounting fixtures are required in its use. In this case, the detailspecification shall describe the mounting fixtures and they shall be used in the application ofthe vibration and the bump or shock tests.
1.4.4Ratings and characteristics1.4.4.1General
The ratings and characteristics shall be in accordance with the relevant clauses of thisstandard, together with the following:
1.4.4.2 Nominal capacitance rangeSee 2.2.4.1.