Capacitor ageing in electronic devices
DOI:
https://doi.org/10.5433/1679-0375.2015v36n2p109Keywords:
Capacitor, Electronic component, Reliability, AgeingAbstract
The moment when an electronic component doesn’t work like requirements, previously established is a task that need to be considered since began of a system design. However, the use of different technologies, operating under several environmental conditions, makes a component choice a complex step in system design. This paper analyzes the effects that ageing phenomenon of capacitors may introduce in electronic devices operation. For this reason, reliability concepts, processes and mechanism of degradation are presented. Additionally, some mathematical models are presented to assist maintenance activities or component replacement. The presented approach compares the operability of intact and aged components.
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