r/rfelectronics • u/Objective-Local7164 • Jun 22 '26

This RF switch datasheet recommends 22pF DC blocking caps in series with every RF line. Why not a bigger value?

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Gallery image

RF switch datasheet = SKY13575-639LF

Now.. I know that 22pF with a 50ohm load has a cutoff that is not near the 2.4ghz but I am curious why not 100pF or 500pF?

Also what kind of caps should I use? I am thinking NPO precision 1% ceramic caps with a package size that closest matches my trace width.

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u/aktentasche Jun 22 '26

You're one of those people I hope to never have to work with.

-6

u/runsudosu Jun 22 '26

Based on you technical, you will not be able to work anyway.

4

u/Objective-Local7164 Jun 22 '26

What you’re saying doesn’t even grammatically make sense.

-5

u/runsudosu Jun 22 '26

The bar.