Help with capacitor type

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Steve
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Joined: Fri Sep 15, 2017 11:49 am

Help with capacitor type

Post by Steve »

Hi guys,

I got a VOFA adaptor from Frank but it requires a type of capacitor that is written as: VS 100N XR7 R2,5

Frank says it is a blocking capacitor 100nf 2.5 grid. I'm not 100% sure what this is, could someone help me find an equivalent on mouser? Thanks,
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DoG
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Re: Help with capacitor type

Post by DoG »

It usually says X7R for the temperature classification. 2,54mm (0,1") lead spacing between the legs (or 2,5mm if it actually is that). ceramic. 100nF (or 0,1uF it's the same).
Steve
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Joined: Fri Sep 15, 2017 11:49 am

Re: Help with capacitor type

Post by Steve »

So this is basically just a 'bog-standard' 100nf ceramic cap? :)
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DoG
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Re: Help with capacitor type

Post by DoG »

Yeah. As I read it at least. I don't know what VS is though. Is it beside a chip?
Steve
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Joined: Fri Sep 15, 2017 11:49 am

Re: Help with capacitor type

Post by Steve »

DoG wrote: Sun Jun 20, 2021 2:15 pm Yeah. As I read it at least. I don't know what VS is though. Is it beside a chip?
Yeah they're besides 74F245 chips.
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DoG
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Re: Help with capacitor type

Post by DoG »

It is probably a decoupling (or bypass) capacitor then as it is called in the electrical industry. Should be very close to VCC pin of a chip (and other leg to GND). Depending on the distance from chip and how many VCC pin it has, more and different value may apply. You can read a LOT of decoupling capacitors on the web if you want to.

If it is that then 'blocking' probably means blocking high frequencies noise on the VCC lines.
czietz
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Re: Help with capacitor type

Post by czietz »

VS 100N XR7 R2,5 is just the order number at one specific German electronics shop (Kessler Electronic). As others have written before me, it's indeed a standard 100 nF ceramic capacitor with 2.5 mm pin spacing.
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