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Unfortunately a capacitor got knocked off from a mainboard. The mainboard is an AsRock Z370 Extreme4 (see here).

The capacitor is labelled as:

FP12K
79AJ
271
16

I want to replace it, but I am not sure what capacitor would be equivalent. What I found out is that it must be a "Nichicon 12K Black Cap". I think the "16" means 16 Volt, but I don't know what "79AJ" and "271" means.

enter image description here

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2 Answers 2

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I couldn't find the datasheet for this exact capacitor from Nichicon, maybe these FP12K are ASRock specific, but one for the RHT series which has similar markings.

enter image description here

This means the capacitor in question is rated for 16V and has a capacity of 270uF.

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  • \$\begingroup\$ Do you know why the number is 271 instead of 270? \$\endgroup\$
    – Tintenfisch
    May 12 at 11:29
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    \$\begingroup\$ @Tintenfisch It stands for 27*10^1. \$\endgroup\$
    – user1850479
    May 12 at 12:03
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    \$\begingroup\$ Exact cap is CAP PL 270UF/16V 8*11.5-12K-B NICHICON/FP-016RE271M-KBCG-BHU. I still accepted your answer because it was helpful to identify capacity and voltage. \$\endgroup\$
    – Tintenfisch
    May 12 at 14:07
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I was able to find it out:

CAP PL 270UF/16V 8*11.5-12K-B NICHICON/FP-016RE271M-KBCG-BHU

Left (Pin 2) is GND and right (Pin 1) is +12V:

enter image description here

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    \$\begingroup\$ Wow this is really confusing. Suggest double checking with a voltmeter. \$\endgroup\$
    – Spehro Pefhany
    May 12 at 14:13
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    \$\begingroup\$ Sorry, always the same with me. I fixed the typo. The left pin (Pin 2) is GND, I double checked it with a voltmeter and added a screenshot to clearify. \$\endgroup\$
    – Tintenfisch
    May 12 at 14:18

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