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IEC 60384-22-2011 pdf free

IEC 60384-22-2011 pdf free.Fixed capacitors for use in electronic equipment – Part 22: Sectional specification – Fixed surface mount multilayer capacitors of ceramic dielectric, Class 2.
This part of lEG 60384 is applicable to fixed unencapsulated surface mount multilayer capacitors of ceramic dielectric, Class 2, for use in electronic equipment. These capacitors have metallized connecting pads or soldering strips and are intended to be mounted on printed boards, or directly onto substrates for hybrid circuits.
Capacitors for electromagnetic interference suppression are not included, but are covered by
IEC 60384-14.
12 Object
The object of this standard is to prescribe preferred ratings and characteristics and to select from IEC 60384-1 the appropriate quality assessment procedures, tests and measuring methods and to give general performance requirements for this type of capacitor. Test seventies and requirements prescribed in detail specifications referring to this sectional specification should be of equal or higher performance level, lower performance levels are not permitted.
1.3 NormatIve references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
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 14,1 may for convenience, be presented En 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 capacitors as an aid to easy recognition and for comparison of the capacitors 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) 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 capacitors.
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 4.3 of this sectional specification.
1.4.3 Rating and characteristics
The ratings and characteristics shall be in accordance with the relevant clauses of this specification, together with the following.
2 Preferred rating and characteristics
2.1 Preferred characteristics
The values given in the detail specification shall preferably be selected from the following.
2.1.1 Preferred climatic categories
The capacitors covered by this sectional specification are classified into climatic categories according to the general rules given in lEG 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, .10 °C and +10 °C;
– upper category temperature: +70 °C, +85 °C, +100 °C, +125 °C and +150 °C;
— duration of the damp heat, steady state test (40 °C. 93 % RH): 4, 10, 21 and 56 days.IEC 60384-22 pdf free download.

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