IEC 60384-21-2019 pdf free.Fixed capacitors for use in electronic equipment – Part 21: Sectional specification – Fixed surface mount multilayer capacitors of ceramic dielectric, Class 1.
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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 60063. Preferred number series for resistors and capacitors
lEG 60068-1:2013, Environmental testing — Part 1: General and guidance
IEC 60068-2-58:2015. Environmental testing — Part 2-58: Tests — Test Td — Test methods for solderability, resistance to dissolution of metallization and to soldering heat of surface mounting devices (SMD)
lEG 60068-2-58:2015/AMD1 :2017
IEC 60384-1 :20 16, Fixed capacitors for use in electronic equipment — Part 1: Generic specification
IEC 61193-2:2007, Quality assessment system — Part 2: Selection and use of sampling plans for inspection of electronic components and packages
ISO 3:1973, Preferred numbers — Series of preferred numbers
3 Terms and definitions
For the purposes of this document, the terms and definitions given in lEG 60384-1 and the following apply.
ISO and lEG maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
surface mount multilayer capacitor
multilayer capacitor whose small dimensions and nature or shape of terminations make it suitable for surface mounting in hybrid circuits and on printed boards
3.2 capacitor of ceramic dielectric, Class 1
capacitor specially designed and suited for resonant circuit application where low losses and high stability of capacitance are essential or where a precisely defined temperature coefficient is required, for example for compensating temperature effects in the circuit
Note I to entry: The ceramic dielectric is defined by its nominal temperature coefficient (a).
3.3 subclass
for a given nominal temperature coefficient, the subclass is defined by the tolerance on the temperature coefficient
Note 1 to entry: See Table 2.
Note 2 to entry: The nominal temperature coefficient value and its tolerance refer to the temperature interval of +20 C to +85 C, but because In practice TC curves are not strictly linear, it Is necessary to define limiting capacitance deviation (,tCIO for other temperatures (see Table 3).
3.4 category temperature range
ambient temperature range for which the capacitor has been designed to operate continuously
Note 1 to entry: This is given by the lower and upper category temperature.
3.5 rated temperature
maximum ambient temperature at which the rated voltage may be continuously applied.IEC 60384-21 pdf free download.