How can I tell whether an SMT/SMD capacitor is oriented with plates horizontal or vertical?

Is there an industry standard for showing how plates in the SMT cap are oriented? How can you tell if it is a square-rectanguloid instead of being flattish in one dimension?

November 3, 2023

You can buy specially marked ones from ATC (American Technical Ceramics, and now owned by AVX, which is in turn owned by Kyocera) if you want to do this.
Or simply choose capacitors that are not square in cross-section, so the orientation can be distinguished even without markings.
Some datasheets have pictures that help if the cap is thinner.

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https://www.youtu.be/kX4gCs9szeA?si=dHZu33mLi7_9wpTv

Olivier Smit

Oliver is een ervaren elektronica-ingenieur met kennis van PCB-ontwerp, analoge circuits, ingebedde systemen, en prototyping. Zijn diepgaande kennis omvat schematisch vastleggen, firmware-codering, simulatie, indeling, testen, en probleemoplossing. Oliver blinkt uit in het omzetten van projecten van concept naar massaproductie met behulp van zijn elektrische ontwerptalenten en mechanische vaardigheden.

Olivier Smit

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How can I tell whether an SMT/SMD capacitor is oriented with plates horizontal or vertical?

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