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Recapping Capacitor List

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Reply 61 of 93, by snufkin

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Looks like Mouser have a few 1000uF 6.3V low ESR options in stock:

https://au.mouser.com/c/passive-components/ca … tors%7C~Product

I don't see anything immediately wrong with the Nichicon UPW.

But fewer 22uF 16V, only:
https://au.mouser.com/ProductDetail/Nichicon/ … 4Afi77uJg%3D%3D

If you include 25V parts there are a few more options:
https://au.mouser.com/c/passive-components/ca … e%20Rating%20DC

Nichicon UPWs are in that list as well.

You'll need to check case sizes/lead spacing to make sure any replacements will fit.

Reply 62 of 93, by AppleSauce

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snufkin wrote on 2021-10-14, 12:00:
Looks like Mouser have a few 1000uF 6.3V low ESR options in stock: […]
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Looks like Mouser have a few 1000uF 6.3V low ESR options in stock:

https://au.mouser.com/c/passive-components/ca … tors%7C~Product

I don't see anything immediately wrong with the Nichicon UPW.

But fewer 22uF 16V, only:
https://au.mouser.com/ProductDetail/Nichicon/ … 4Afi77uJg%3D%3D

If you include 25V parts there are a few more options:
https://au.mouser.com/c/passive-components/ca … e%20Rating%20DC

Nichicon UPWs are in that list as well.

You'll need to check case sizes/lead spacing to make sure any replacements will fit.

I thought using polymers as replacements was a bit risky though?

Reply 63 of 93, by snufkin

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Think there's a possible inrush current issue, and possible stability if the feedback loop is a bit slow or insensitive, but I'd expect the difference between high or low 10s of milliohms (going from low ESR AlElectrolytic to Polymer) is probably masked by other resistances in the circuit. So I included them anyway. But the Nichicon are normal low ESR anyway, and the 22uF 25V part is in stock, if it'll fit.

Reply 64 of 93, by AppleSauce

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snufkin wrote on 2021-10-14, 12:13:

Think there's a possible inrush current issue, and possible stability if the feedback loop is a bit slow or insensitive, but I'd expect the difference between high or low 10s of milliohms (going from low ESR AlElectrolytic to Polymer) is probably masked by other resistances in the circuit. So I included them anyway. But the Nichicon are normal low ESR anyway, and the 22uF 25V part is in stock, if it'll fit.

oh right so you can use a 25v cap instead of a 16v one in this case?

Reply 66 of 93, by snufkin

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Looks like the case size is the same between the 16V and 25V part for the UPW (I've no particular reason to pick that one out, just that the specs look ok, Nichicon are a good make, and it's available), and the ESR and rated ripple current are the same. So there shouldn't be any harm using the 25V part. Never reduce the rated voltage if swapping out caps.

Reply 68 of 93, by mockingbird

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What's the diameter on those 6.3V 1000uF?

For 8mm, any of these will be fine (yes, you can use slightly higher capacitance and the voltage rating can be higher):

https://au.mouser.com/ProductDetail/Panasonic/EEU-FR0J122LB
https://au.mouser.com/ProductDetail/Panasonic/EEU-FR1A102L
https://au.mouser.com/ProductDetail/Panasonic/EEU-FM1A102LB
https://au.mouser.com/ProductDetail/Panasonic/EEU-FS1C122L
https://au.mouser.com/ProductDetail/Panasonic/EEU-FR1A102LB
https://au.mouser.com/ProductDetail/Panasonic/EEU-FS1A122L
https://au.mouser.com/ProductDetail/Panasonic/EEU-FR0J102
https://au.mouser.com/ProductDetail/Panasonic/EEU-FM1A102L
https://au.mouser.com/ProductDetail/Panasonic/EEU-FS1C122LB
https://au.mouser.com/ProductDetail/Nichicon/UHV0J122MPD6
https://au.mouser.com/ProductDetail/United-Ch … M160EC5102MH20D
https://au.mouser.com/ProductDetail/United-Ch … H100ELL102MH15D
https://au.mouser.com/ProductDetail/United-Ch … E6R3EC3122MH20D

AppleSauce wrote on 2021-10-14, 12:50:

Hokay this list might be good then.

Looks good, except for the 22uF ZLG. I don't like ZLG for small caps, because the endurance rating is greatly diminished at that size.

Use this UCC KY series part instead:

https://au.mouser.com/ProductDetail/United-Ch … -500ELL220ME11D

Last edited by mockingbird on 2021-10-14, 13:01. Edited 1 time in total.

7ivtic.png

Reply 69 of 93, by AppleSauce

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mockingbird wrote on 2021-10-14, 12:57:
What's the diameter on those 6.3V 1000uF? […]
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What's the diameter on those 6.3V 1000uF?

For 8mm, any of these will be fine (yes, you can use slightly higher capacitance and the voltage rating can be higher):

https://au.mouser.com/ProductDetail/Panasonic/EEU-FR0J122LB
https://au.mouser.com/ProductDetail/Panasonic/EEU-FR1A102L
https://au.mouser.com/ProductDetail/Panasonic/EEU-FM1A102LB
https://au.mouser.com/ProductDetail/Panasonic/EEU-FS1C122L
https://au.mouser.com/ProductDetail/Panasonic/EEU-FR1A102LB
https://au.mouser.com/ProductDetail/Panasonic/EEU-FS1A122L
https://au.mouser.com/ProductDetail/Panasonic/EEU-FR0J102
https://au.mouser.com/ProductDetail/Panasonic/EEU-FM1A102L
https://au.mouser.com/ProductDetail/Panasonic/EEU-FS1C122LB
https://au.mouser.com/ProductDetail/Nichicon/UHV0J122MPD6
https://au.mouser.com/ProductDetail/United-Ch … M160EC5102MH20D
https://au.mouser.com/ProductDetail/United-Ch … H100ELL102MH15D
https://au.mouser.com/ProductDetail/United-Ch … E6R3EC3122MH20D

Diameter: 8 mm

Reply 72 of 93, by AppleSauce

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mockingbird wrote on 2021-10-14, 13:02:
AppleSauce wrote on 2021-10-14, 13:01:

Diameter: 8 mm

See my post, I edited it.

right my bad
also ill switch to the one you recommended

Reply 74 of 93, by snufkin

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I don't immediately see anything wrong, but you may want to wait for more knowledgeable people to chip in.
[edit: oops, they had before I posted...]

Mind the lead spacing though. I think those Panasonic ones ending in B have a wider spacing and a crimp just before the legs go in to the capacitor, looks like this: https://richelectronics.co.uk/product/rubycon … -8x16mm-mbf017f

Could make it a bother fitting the capacitors without stressing the lead where it goes in to the body of the capacitor.

Reply 75 of 93, by mockingbird

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AppleSauce wrote on 2021-10-14, 13:10:

Okay how about this list?

Looks good. This is just for the motherboard?

snufkin wrote on 2021-10-14, 13:10:

Mind the lead spacing though. I think those Panasonic ones ending in B have a wider spacing and a crimp just before the legs go in to the capacitor

There's no need at all to worry about lead spacing for any of these parts.

7ivtic.png

Reply 76 of 93, by AppleSauce

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mockingbird wrote on 2021-10-14, 13:19:
Looks good. This is just for the motherboard? […]
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AppleSauce wrote on 2021-10-14, 13:10:

Okay how about this list?

Looks good. This is just for the motherboard?

snufkin wrote on 2021-10-14, 13:10:

Mind the lead spacing though. I think those Panasonic ones ending in B have a wider spacing and a crimp just before the legs go in to the capacitor

There's no need at all to worry about lead spacing for any of these parts.

Yeah its just for the motherboard , ill need to go and redo the list for the power supply

Reply 77 of 93, by AppleSauce

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Generally speaking from what i gather on the psu, the esr meter seems to say that anything with a UF in the hundreds or thousands are low esr and the and anything less than that is just general purpose caps??
Does that sound right?

Reply 78 of 93, by mockingbird

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AppleSauce wrote on 2021-10-14, 13:26:

Generally speaking from what i gather on the psu, the esr meter seems to say that anything with a UF in the hundreds or thousands are low esr and the and anything less than that is just general purpose caps??
Does that sound right?

Bigger caps have lower ESRs by the nature of their manufacture (don't ask me to explain why - Better ask Wester547 over at badcaps)... So while it's normal to have something like a 5mm 10uF cap test at between 1 to 5 Ohms, 1 Ohm on something like a 10x20mm cap would be greatly suspect.

Keep in mind with the ESR meter that some of the caps you're replacing might test fine, but you don't test for other things with it like leakage current for example, so it's best to replace everything.

7ivtic.png

Reply 79 of 93, by AppleSauce

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mockingbird wrote on 2021-10-14, 13:40:
AppleSauce wrote on 2021-10-14, 13:26:

Generally speaking from what i gather on the psu, the esr meter seems to say that anything with a UF in the hundreds or thousands are low esr and the and anything less than that is just general purpose caps??
Does that sound right?

Bigger caps have lower ESRs by the nature of their manufacture (don't ask me to explain why - Better ask Wester547 over at badcaps)... So while it's normal to have something like a 5mm 10uF cap test at between 1 to 5 Ohms, 1 Ohm on something like a 10x20mm cap would be greatly suspect.

Keep in mind with the ESR meter that some of the caps you're replacing might test fine, but you don't test for other things with it like leakage current for example, so it's best to replace everything.

Yeah I just more wanted to know which caps I should replace with low ESR and which ones to select generals instead.