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Author Topic: Whats the difference  (Read 1083 times)

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Offline Spark-DoctorTopic starter

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Whats the difference
« on: December 09, 2019, 09:27:03 pm »
As the title says, whats the difference between these two capacitors,

https://www.rapidonline.com/kemet-r82dc3100aa50k-100nf-63v-5mm-polyester-box-capacitor-10-3260

https://www.mouser.co.uk/ProductDetail/KEMET/C0805C104KMREC7210?qs=sGAEpiMZZMs0AnBnWHyRQN7%2FAA2D2lPPiNnp3wDfsnbj3Ps1TMyQ%2FQ%3D%3D

Please don't say "one is SMD, the other is through hole", i know that already  :-DD I am more interested in why you would chose one over the other.

Many thanks in advance

Ian
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Offline David Hess

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Re: Whats the difference
« Reply #1 on: December 09, 2019, 11:15:12 pm »
X7R ceramic dielectric can have a quite large voltage coefficient of capacitance which limits it to decoupling applications.  This will also cause distortion in filters.

Metalized film is self healing while ceramic tends to fail with a short.
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