DIN EN 60384-13:2012-09

This part of IEC 60384 applies to fixed direct current capacitors, using as dielectric a polypropylene film with electrodes of thin metal foils. The capacitors covered by this standard are intended for use in electronic equipment. This standard prescribes preferred ratings and characteristics and selects from IEC 60384-1 the appropriate quality assessment procedures, tests and measuring methods, and gives general performance requirements for this type of capacitor. Test severities and requirements prescribed in detail specifications referring to this sectional specification are of at least equal or higher performance level, because lower performance levels are not permitted. Capacitors for electromagnetic interference suppression are not included, but are covered by IEC 60384-14. For the purposes of this document, the terms and definitions given in IEC 60384-1 and the following apply. The stability class is the tolerance the temperature coefficient together with the permissible change of capacitance after defined tests. The rated voltage is the maximum d.c. voltage which may be applied continuously to a capacitor at the rated temperature. Thereby the sum of the d.c. voltage and the peak a.c. voltage applied to the capacitor should not exceed the rated voltage. The value of the peak a.c. voltage should not exceed the following percentages of the rated voltage at the frequencies stated and should be not greater than 280 V (50 Hz: 20 %, 100 Hz: 15 %, 1 000 Hz: 3 %, 10 000 Hz: 1 %) unless otherwise specified in the detail specification. IEC 60384-1 shall be considered regarding the marking of the capacitors. The information to be provided in marking of capacitors is usually selected from the following list and its relative importance corresponds with the ranking: nominal capacity, rated voltage, tolerance of nominal capacity, year and month (or week) of the manufacture, name of the manufacturer and reference to the detail specification. The preferred ratings and preferred characteristics are defined in clause "Preferred ratings and characteristics". Preferred ratings of the nominal capacity shall be taken from the series E6, E12, E24, E48 and E96 in accordance with IEC 60063. The preferred values of the tolerances of nominal capacity for the preferred E series are summarized in Table 1. The preferred values of the rated voltage are: - 40 V - 63 V - 100 V - 160 V - 250 V and their decimal multiples. These values correspond with the basic series of the preferred numbers R5 in accordance with ISO 3. The standard value of the rated temperature is 85 °C and equals the rated voltage. At the upper temperature limit of 100 °C, the category voltage equals 0,7 times of the rated voltage. The standard value of the rated temperature is 85 °C. Clause "Quality assessment procedures" explains the primary stage of manufacture, namely winding the capacitor or the corresponding process, the structurally similar components, the certified records of released lots and the certification approval. The method with fixed sample sizes is described in IEC 60384-1. The sample shall represent the range of the capacitors, for which certification approval has been applied. However, it shall not necessarily be the entire range covered by the detail specification. The sample shall consist of specimens with the highest and lowest voltage and contain the lowest and highest capacity values for these voltages. If more than four rated voltages are given, an average rated voltage shall be also tested. For certification approval of a range, testing of four or six values (combinations of capacity values/rated voltages) is necessary. If the range covers less than four values, the number of specimens shall correspond with the required number for four values. Two or three additional specimens are allowed per value as a substitute for failures of specimens for which the manufacturer shall not be held responsible. The number of specimens indicated in group 0 applies for the case that all groups shall be tested. If this is not the case, the quantities can be reduced accordingly. If the sampling plan for the certification approval contains additional groups, the specimen quantities required for group 0 shall be supplemented by the specimens required by the additional groups. Table 3 also includes the sampling plan and the permitted number of non-compliant components for qualification approval tests. In chapter "Test and measurement procedures", the visual examination and check of dimensions, electrical tests, robustness of terminations, resistance to soldering heat and solderability, rapid change of temperature, vibration, bump and shock, damp heat, steady state, component solvent resistance and solvent resistance of the marking are explained. The following modifications have been made with respect to DIN EN 60384-13:2006-09 and DIN EN 60384-13 Corr 1:2008-10: a) all clauses have been revised taking into consideration the entire content of the previous edition in accordance with the current shape and design requirements are explained. b) Table 3, Sampling plan together with numbers of permissible non-conformance for qualification approval test, has been adjusted. c) Table 5, Lot-by-lot inspection, has been changed, highlighting assessment level EZ only. d) Table 6, Periodic inspection, has been changed, highlighting assessment level EZ only. The responsible committee is K 611 "Kondensatoren" ("Capacitors") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.