Talk:Electronics/Capacitors

Thanks, Wanderer!

Someone should lay off on the big worded talk later down the page when talking about permeability.

In the common case of an isotropic medium, D and E are parallel and ε is a scalar, but in more general anisotropic media this is not the case and ε is a rank-2 tensor (causing birefringence).

isotropic? birefringence? rank-2 tensor? anisotropic media?

RC circuit drawings are incorrect
The circuit drawings for RC circuit portion of the article are incorrect. One of two things can be done to fix these: (1) replace the battery with a current source or (2) keep the battery but put all the components in series. I recommend option (2) as a battery is more familiar than a current source. Alfred Centauri 01:35, 31 May 2005 (UTC)

Pros & cons of different capacitor technologies
Different capacitor types have inherent characteristics which make them unsuitable or less desirable for certain applications. It would be useful to list both pros and cons for electrolytic, ceramic, mica, paper, tantalum, aluminum-Mylar, and other types of capacitors. As a 25+ year electronic design engineer, I am frequently amazed how even my fellow electrical engineers are unaware of these factors. It's not an area typically covered in undergraduate engineering programs, and the better engineers acquire this knowledge on the job over a five- to ten-year period. --QuicksilverT @ 19:58, 5 December 2005 (UTC)

Electrolytic pics are bad
I don't like the electrolytic picture, it (the caption) doesn't say which one is radial and which is axial, and the leads are shown of equal length, which is incorrect. I may post something on this if it is ok.66.75.230.103 06:32, 10 December 2005 (UTC)

equivalent series resistance
This module mentions
 * ESR or "equivalent series resistance" (explained above).

but alas, I don't see any explanation of it, either "above" or "below" that mention. Has the ESR explanation been accidentally deleted? --DavidCary (talk) 16:14, 2 September 2008 (UTC)

which capacitor information goes where
I think somewhere we should mention "surge current" ratings. In particular, the fact that tantalum capacitors can fail and become a short circuit if their surge current is exceeded.

But should I mention that in Electronics/Capacitors, Electronics/Component Identification, or Electronics/Capacitor Construction ? --DavidCary (talk) 01:50, 17 October 2008 (UTC)