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Search: Posts Made By: s675
Forum: General Capacitor Questions & Issues 10-17-2021, 11:04 AM
Replies: 8
Views: 1,046
Posted By s675
Re: Exactly same capacitors from NCC and Nichicon

I'm aware that they both are manufacturers, but somebody is copying somebody else here, with or without permission. I would not think very highly of whichever one is the copycat. I'd expect actual...
Forum: General Capacitor Questions & Issues 10-16-2021, 03:04 PM
Replies: 8
Views: 1,046
Posted By s675
Re: Exactly same capacitors from NCC and Nichicon

You make a good point. The specs (including lifetime) all match.

Here are the possibilities that I have thought of:


One company makes the capacitors, and the other company rebrands them with...
Forum: General Capacitor Questions & Issues 10-14-2021, 02:59 PM
Replies: 7
Views: 949
Posted By s675
Re: Decipher part of this please: 4.7U_0805_25V6K

My ideas so far for the meaning of 6K:


Withstand voltage (6kV)
"Kemet code" (seen in some documents from Kemet)
6 being unknown and K being 10% tolerance
Date code accidentally included
...
Forum: General Electronics Technical Discussion 10-11-2021, 01:23 PM
Replies: 2
Views: 658
Posted By s675
Re: SMD electrolytics

Just a somewhat related note that if an SMD cap doesn't have vent, it may still still be aluminium electrolytic and not polymer. Some people seem to think that no vent must mean that it is polymer.
Forum: General Capacitor Questions & Issues 10-02-2021, 09:50 AM
Replies: 5
Views: 599
Posted By s675
Re: Trouble ID段ng C3 Cap.

Here's the part number scheme I found. Doesn't seem to tell you anything.
Forum: General Capacitor Questions & Issues 10-02-2021, 09:43 AM
Replies: 5
Views: 599
Posted By s675
Re: Trouble ID段ng C3 Cap.

Do you know the dimensions and lead pitch?
Forum: General Capacitor Questions & Issues 10-02-2021, 09:36 AM
Replies: 5
Views: 599
Posted By s675
Re: Trouble ID段ng C3 Cap.

Could be the Lelon RGA series.

RGA = series
105C = temp rating
H245 = ?
M = 20% tolerance

Other Lelon RGA show things like H136 and H736.
Forum: General Computer & Tech Discussion 09-15-2021, 12:37 PM
Replies: 4
Views: 1,468
Posted By s675
Re: Quality half-height mSATA SSD

Closest *new* item I could find is 64GB (link to item (https://www.ebay.com/itm/294138031677)).

Closest *used* item I could find is 128GB (link to item (https://www.ebay.com/itm/403162470122)).
...
Forum: General Electronics Technical Discussion 09-09-2021, 01:55 PM
Replies: 99
Views: 18,287
Posted By s675
Re: Cheap Ebay Stuff: the Good, the Bad, and the Ugly Post Your Reviews

I have some similar looking leads that came with a cheap-ish clamp meter. The quality doesn't actually seem too bad, but one of them snapped where the coloured dot is, at the end nearer to the tips....
Forum: General Capacitor Questions & Issues 09-07-2021, 09:06 AM
Replies: 60
Views: 19,314
Posted By s675
Re: Any more info on counterfeit Nichicons?

I think the problem generally isn't ESR, it is lifespan and reliability. The fake would probably last far less time.




The short URL doesn't work. At least use a short URL provider that allows...
Forum: Troubleshooting Power Supplies and Power Supply Design 08-29-2021, 08:35 AM
Replies: 6
Views: 2,501
Posted By s675
Re: WARNING: Live heatsinks & single pole on/off switches in switching power supplies

Here in the UK most of our circuit breakers at the main board (consumer unit) are single pole. If the incoming supply before the board is reversed, you end up with the situation where everything...
Forum: General Capacitor Questions & Issues 10-24-2020, 11:52 AM
Replies: 12
Views: 1,939
Posted By s675
Re: Fake Nichicon PS series?

0.14 ohm ESR, 0.3% Vloss. I suppose that ESR is OK considering the accuracy of the meter. At least they are "real".



I read that scam emails purposely misspell words to ward off those who are...
Forum: General Capacitor Questions & Issues 10-22-2020, 11:27 AM
Replies: 12
Views: 1,939
Posted By s675
Re: Fake Nichicon PS series?

I should say the SEP KBL608 rectifier.
Forum: General Capacitor Questions & Issues 10-22-2020, 09:35 AM
Replies: 12
Views: 1,939
Posted By s675
Re: Fake Nichicon PS series?

Thanks all!

I took them off and yep, bullseye bung.

Tested at 2112uf on my cheap meter, so at least that's normal.

The other caps on the board are:
2x Jwco 47uf 50v 105c (12.5x5mm)
2x CZF...
Forum: General Capacitor Questions & Issues 10-21-2020, 02:53 PM
Replies: 12
Views: 1,939
Posted By s675
Fake Nichicon PS series?

3 or 4 years ago I purchased a TDA7293 amplifier board from eBay.

I have never used it, but I looked at at and noticed that the large filter caps are ostensibly Nichicon PS(M) 2200uf 50v. They...
Forum: Announcements & Related News 10-21-2020, 01:49 PM
Replies: 30,140
Views: 3,051,391
Posted By s675
Re: New Members - please post your introductions here

Hello, I am from the UK. Have had an account for quite a while but have not yet made a post! I often end up back here via Google whenever I am researching electronics.
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