Author Topic: N scale keep alive possibilities?  (Read 354 times)

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LKOrailroad

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N scale keep alive possibilities?
« on: March 11, 2026, 11:32:19 AM »
+1
Really small super caps announced by Schurter: https://www.electronics-lab.com/schurter-releases-ultra-thin-high-power-coin-cell-supercapacitors



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Alan

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Sumner

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Re: N scale keep alive possibilities?
« Reply #1 on: March 11, 2026, 01:13:50 PM »
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Interesting but looks like they are limited, the ones posted, to 5.5v.

Sumner
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peteski

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Re: N scale keep alive possibilities?
« Reply #2 on: March 11, 2026, 03:52:50 PM »
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Sumner,
Most Super Caps are rated for around 2.7V.  Most simple Super-cap based keep-alive circuits use several caps rated for 2.7V connected in series to increase their operating voltage.  The more complex keep-alives do use 2.7V rated caps with a DC/DC converter to charge and discharge them using 12V.  These caps could be used directly in those Keep-alives or stacked in series in the  simpler keep-alives.
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Lemosteam

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Re: N scale keep alive possibilities?
« Reply #3 on: March 12, 2026, 11:15:42 AM »
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Really small super caps announced by Schurter: https://www.electronics-lab.com/schurter-releases-ultra-thin-high-power-coin-cell-supercapacitors



(Attachment Link)

In that link there is a link to the Schurter page for them and there are 3D models of each version you can download for design space packaging.
John "Lemosteam" LeMerise

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Re: N scale keep alive possibilities?
« Reply #4 on: March 14, 2026, 08:02:15 AM »
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Curious, would this work well for N scale locomotives? Where could it be placed inside the shell?

peteski

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Re: N scale keep alive possibilities?
« Reply #5 on: March 14, 2026, 09:46:19 AM »
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Curious, would this work well for N scale locomotives? Where could it be placed inside the shell?

I don't  see why it wouldn't work (but not by itself - multiple caps would be needed to increase the cap's working voltage, and some ancillary components would need to be added). Assuming there is enough available space in the model.
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