# Identifying these capacitors' voltage ratings (they are marked)

**URL:** <https://forum.digikey.com/t/identifying-these-capacitors-voltage-ratings-they-are-marked/14567>\
**Category:** Capacitors\
**Tags:** aluminum-polymer-capacitors, panasonic-electronic-components, part-identification\
**Created:** [June 8, 2021, 12:46am UTC](https://forum.digikey.com/t/identifying-these-capacitors-voltage-ratings-they-are-marked/14567 "2021-06-08T00:46:10Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![survivalbloke](https://avatars.discourse-cdn.com/v4/letter/s/ad7895/32.png) [@survivalbloke](https://forum.digikey.com/u/survivalbloke)\
**Post date:** [June 8, 2021, 12:46am UTC](https://forum.digikey.com/t/identifying-these-capacitors-voltage-ratings-they-are-marked/14567/1 "2021-06-08T00:46:10Z")

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These caps are on a Nintendo wii motherboard. They are confirmed to be marked in micro farads, so 150 and 330, but how can I tell the voltage rating? I’m thinking they are on the 3.3V rails but I can’t confirm.

[Here’s a link to the pics.](https://imgur.com/a/bNrKunb)

Thanks in advance!

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**Author:** ![Robert\_1552](https://avatars.discourse-cdn.com/v4/letter/r/e47c2d/32.png) [@Robert\_1552](https://forum.digikey.com/u/Robert_1552)\
**Post date:** [June 8, 2021, 9:26pm UTC](https://forum.digikey.com/t/identifying-these-capacitors-voltage-ratings-they-are-marked/14567/2 "2021-06-08T21:26:39Z")

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what is the size of the caps they look like [718-1536-1-ND](https://www.digikey.com/en/products/detail/vishay-sprague/TR3D156K035C0150/1859853) TR3D156K035C0150

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**Author:** ![David\_1528](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/david_1528/32/47212_2.png) [@David\_1528](https://forum.digikey.com/u/David_1528)\
**Post date:** [June 8, 2021, 11:27pm UTC](https://forum.digikey.com/t/identifying-these-capacitors-voltage-ratings-they-are-marked/14567/3 "2021-06-08T23:27:46Z")

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I suspect they are aluminum polymer caps. The little “d” is what Panasonic (and I think others) use to indicate “2V” in their aluminum polymer caps, and “g” indicates 4V.

 ![image](https://global.discourse-cdn.com/digikey/original/3X/3/8/380e78b3dd83bf5b2e1502f46a8f3ac0fc3aee24.png)

So, reasonable options would be:

- [EEF-SX0D331E4](https://www.digikey.com/en/products/detail/panasonic-electronic-components/EEF-SX0D331E4/2203692) 330uF 2V Aluminum-Polymer Capacitor

- [EEF-SX0G151E7](https://www.digikey.com/en/products/detail/panasonic-electronic-components/EEF-SX0G151E7/2271842) 150uF 4V Aluminum-Polymer Capacitor

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**Author:** ![survivalbloke](https://avatars.discourse-cdn.com/v4/letter/s/ad7895/32.png) [@survivalbloke](https://forum.digikey.com/u/survivalbloke)\
**Post date:** [June 9, 2021, 10:57pm UTC](https://forum.digikey.com/t/identifying-these-capacitors-voltage-ratings-they-are-marked/14567/4 "2021-06-09T22:57:06Z")

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Wow, now I learned something with this post. Solid, and ty.