# Using a film and a ceramic cap in parallel

**URL:** <https://lookmumnocomputer.discourse.group/t/using-a-film-and-a-ceramic-cap-in-parallel/4355>\
**Category:** DIY STUFF\
**Created:** [December 9, 2021, 12:01am UTC](https://lookmumnocomputer.discourse.group/t/using-a-film-and-a-ceramic-cap-in-parallel/4355 "2021-12-09T00:01:17Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![hitachii](https://avatars.discourse-cdn.com/v4/letter/h/b5ac83/32.png) [@hitachii](https://lookmumnocomputer.discourse.group/u/hitachii)\
**Post date:** [December 9, 2021, 12:01am UTC](https://lookmumnocomputer.discourse.group/t/using-a-film-and-a-ceramic-cap-in-parallel/4355/1 "2021-12-09T00:01:17Z")

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In order to achieve a certain capacitance, I need to sum two capacitors. Problem is, the ones that add nicely are different types (ceramic and mylar). Will this be an issue?

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**Author:** ![BlackDeath](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/blackdeath/32/7644_2.png) [@BlackDeath](https://lookmumnocomputer.discourse.group/u/BlackDeath)\
**Post date:** [December 9, 2021, 12:05am UTC](https://lookmumnocomputer.discourse.group/t/using-a-film-and-a-ceramic-cap-in-parallel/4355/2 "2021-12-09T00:05:10Z")

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In my completely uniformed experience of just using whatever type I have on hand because I’m lazy, capacitors types (not including polarized ones, obviously) don’t make a lick of difference.

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**Author:** ![analogoutput](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/analogoutput/32/29663_2.png) [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\
**Post date:** [December 9, 2021, 12:58am UTC](https://lookmumnocomputer.discourse.group/t/using-a-film-and-a-ceramic-cap-in-parallel/4355/3 "2021-12-09T00:58:38Z")

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Just pay attention to the values and tolerances. If the smaller one’s smaller than the tolerance on the larger one, you might not benefit from bothering with it.

Also, topic title says “film and mylar”, is that an error?

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**Author:** ![hitachii](https://avatars.discourse-cdn.com/v4/letter/h/b5ac83/32.png) [@hitachii](https://lookmumnocomputer.discourse.group/u/hitachii)\
**Post date:** [December 10, 2021, 1:21am UTC](https://lookmumnocomputer.discourse.group/t/using-a-film-and-a-ceramic-cap-in-parallel/4355/4 "2021-12-10T01:21:14Z")

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I did mean that whoops, I can’t see how to edit the title.

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**Author:** ![analogoutput](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/analogoutput/32/29663_2.png) [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\
**Post date:** [December 10, 2021, 1:22am UTC](https://lookmumnocomputer.discourse.group/t/using-a-film-and-a-ceramic-cap-in-parallel/4355/5 "2021-12-10T01:22:18Z")

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Pencil icon right after the title. Unless that’s a trust level dependent thing, of course.