Talk:Practical Electronics/Common Problems

Asstd
> If it works once, most electronic devices will continue to work almost indefinitely.

simply not true

> nearly every electronic component will be permanently damaged or destroyed, if power or other connections are connected to something with a voltage too large to handle,

tautology

> or unexpectedly reversed.

R, L, non-electrolytic C, and many electrolytic C dont care at all

> Designers often put a "protection circuit" -- such as a crowbar circuit -- between connectors and sensitive components.

Sometimes, but usually not

>   * But with adequate protection, most components will last indefinitely:; >         o transistors

lots of trs have failed due to thermal cycling and corrosion.

>         o integrated circuits

thermal cycling, radiation damage

>         o ceramic capacitors

cracking, oxidation

>         o printed circuit boards

Loads have failed, loss of adhesion, burning, delamination, arcing etc

> High temperature and high current usually accelerates wear-out. Sometimes a heat sink can extend the life of a component.

yes, but not normally why heatsinks are used 82.31.66.207 (discuss) 01:01, 24 July 2013 (UTC)