BS EN 60384-13-2012 pdf download.Fixed capacitors for use in electronic equipment
Part 13: Sectional specification — Fixed polypropylene film dielectric metal foil d.c. capacitors.
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
These 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.
Normally, the numerical values shall be given for the length, the width arid height of the body and the wire spacing, or for cylindrical types, the body diameter, and the length and 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 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. When the capacitor is not designed for use on printed boards, this shall be clearly stated in the detail specification.
1.4.2 Mounting
The detail specification shall specify the method of mounting to be applied for normal use and for the application of the vibration and the bump or shock tests. The capacitors shall be mounted by their normal means. The design of the capacitor may be such that special mounting fixtures are required in its use. In this case, the detail specification shall describe the mounting fixtures and they shall be used in the application of the vibration and bump or shock tests.
1.4.3 Rating and characteristics
1.6 Marking
See IEC 60384-1, 2.4 with the following details.
1.6.1 General
The information given in the marking Is normally selected from the following list; the relative importance of each item is indicated by its position in the list.
— nominal capacitance;
— rated voltage (d.c. voltage may be indicated by the symbol
— tolerance on nominal capacitance;
— year and month (or week) of manufacture;
— manufacturer’s name or trade mark;
— temperature coefficient and stability class;
— climatic category;
— manufacturer’s type designation;
— reference to the detail specification;
1.6.2 Marking of capacitors
The capacitor shall be clearly marked with a), b) and c) of 1.6.1 and with as many as possible of the remaining items as is considered necessary. Any duplication of information in the marking on the capacitor should be avoided.
1 6.3 Marking of packaging
The package containing the capacitor(s) shall be clearly marked with all the information listed in 1.6.1.
1.6.4 Additional marking
Any additional marking shall be so applied that no confusion can arise.
2 Preferred ratings and characteristics
2.1 Preferred characteristics
The values given In detail specifications shall preferably be selected from the following.
2.1.1 Preferred climatic categories
The capacitors covered by this specification are classified into climatic categories according to the general rules given in IEC 60068-1.
The lower and upper category temperatures and the duration of the damp heat, steady-state
test shall be chosen from the following:
• Lower category temperature: —55 °C. —40 °C, —25 °C and —10 C
• Upper category temperature: +85 °C , +100 °C and +105 °C
• Duration of the damp heat, steady-state test: 10, 21 and 56 days
The seventies for the cold and dry heat tests are the lower and upper category temperatures respectively.
2.1.2 Assisted drying
Assisted drying is conditionally for a period between I h and 6 h at a temperatures (55 ± 2) °C and a relative humidity not exceeding 20 %.
2.2 Preferred values of ratings
2.2.1 Nominal capacitance (CN)
Preferred values of nominal capacitance are to be taken from the E 6, E 12, E 24, E 48 and E 96 series of IEC 60063.
2.2.2 Tolerance on nominal capacitance
The preferred tolerances on nominal capacitance are given in Table 1.BS EN 60384-13-2012 pdf download.

Share on Facebook

Post on X

Follow us

Save