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Extreme 220GHz+Broadband Silicon Capacitor X2SC 0201M 22nF BV11

pim.murata.com

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Re: Extreme 220GHz+Broadband Silicon Capacitor X2SC 0201M 22nF BV11

#33
post #4

Why is this a component? Couldn't you just make one of these out of PCB traces?

Not if it is to be 22 nF. To make a 22 nF capacitor using a pair of copper pours separated by a 1.6 mm thick old school two-layer PCB, we would need something like 10 square feet! It would have to be an electronics art project, intended to be displayed on a gallery wall. :) That goes down to something like 90 square inches if the separation is a 0.1mm thick layer of a thin four-layer PCB: still an impractically huge…

Yeah, I actually realized too late that my brain somehow thought that nanofarads were smaller than picofarads. Mea culpa.

Re: Extreme 220GHz+Broadband Silicon Capacitor X2SC 0201M 22nF BV11

#34

Earlier quoted context omitted.

I never understood why nF is less frequently used than uF or pF. To me, the logical thing is to express the capacity in units that are between 1 and 1000, like it's done with resistors and inductors.

I, too, had wondered; this seems particularly common in the US. My best theory is that in rough handwriting, n and u/μ can look pretty similar, and everyone sort of agreed to only use u to reduce ambiguity.

There's also a very old convention of using no units at all and assuming that "1" means uF.
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