Hello ,I have used a capacitor shown below,its a ceramic 1nF.
when i looked at footprint picture i saw that that is a golden line on one side.
Looking at the data sheet is it a symmetrical or non symmetrical capacitor?
Thanks.
https://www.digikey.co.il/he/produc...1?s=N4IgTCBcDaIAwA44FZkGECMcwGkCCAKmHiALoC+QA

 

Look at the data sheet for the part. I don't see anything in the English version that indicates any kind of polarity -- nor does the data sheet have any hint of some line on one side. Where did that footprint picture come from? Looks like it might be just some generic 3D model.

 

Hello WBahn could you please tell me what kind of capacitors i should expect being polar?(non symmetrical)
Thanks.

 

The typical example is most electrolytic capacitors.

 

The typical example is most electrolytic capacitors.

and tantalum ... though they're being phased out, the way I see the trends

 

The gold line may indicate the outer layer of the fabricated capacitor.
That side would have a small coupling to external electric fields.
If the capacitor goes to ground, that should be the gold line side.

 

and tantalum ... though they're being phased out, the way I see the trends

The have been used a lot in space and military electronics since they are more reliable than Al electrolytics, so I'm not sure that's true.

 

and tantalum ... though they're being phased out, the way I see the trends

Tantalums are electrolytics, along with aluminum and niobium.

 

The gold line may indicate the outer layer of the fabricated capacitor.
That side would have a small coupling to external electric fields.
If the capacitor goes to ground, that should be the gold line side.

Good point. I had completely forgotten about that since I haven't worked with RF much at all at the component level, but those were issues we had to deal with on IC designs where we had to be concerned with coupling to nearby traces.

 

The have been used a lot in space and military electronics since they are more reliable than Al electrolytics, so I'm not sure that's true.

MLCCs can replace most tantalums and are more reliable and not polarized. I assumed that is why tantalums are in the way out.