DELL 2005FPW SMD caps

[markcoenen]

I am replacing the caps on a DELL 2005FPW monitor.
The main (video?)(inverter?) board has 4 SMD electrolytic capacitors.

3 have the same markings, “45126 47 16f” and the service manual has a parts list with this entry “47UF MVK 16V 20% R/TP(SMD) S” for all 3.

The other cap has markings “5m 3.3 50v” and parts list entry “3.3UF MV 50V 20% R/TP(SMD) S”.

Is there any way to know the manufacturer?
I'm guessing the “MVK” & “MV” are series markings. I found NCC datasheets for MVK-BP & MV-BP. I didn't find any other manufacturers with those series.

I also guess the 1st is a 4.7uF 16v cap and the 2nd is a 3.3uF 50v cap. Is that correct? I guessed 4.7uF because the datasheet did not have a 47uF entry although the parts list has “47uF” so maybe I've got the wrong manufacturer or series.

But, what do the “45126” & “5m” cap markings mean?

Also, are the rules for selecting replacement SMD electrolytic caps the same as through hole caps?

enclosed are pix of the caps

Thanks all

[1supertech]

Re: DELL 2005FPW SMD caps

My guess is 45126 could be a code date 5mm would be diameter
I use electrolytic caps cut and bend leg to match solder tabs

[mariushm]

Re: DELL 2005FPW SMD caps

Those are probably made by Samyoung (they, Nichicon and Elna are some of the bigger capacitor manufacturers that use black bars)

The one on the left is probably 3.3uf and 50v rated, the one on the right is 47uF and voltage rating is probably 16v but F may be a company specific code for voltage , as F isn't a standard code for voltage

The standard ones are usually these:

Letter Voltage
e 2.5
G 4
J 6.3
A 10
C 16
D 20
E 25
V 35
H 50

Datasheet for Samyoung MVK (BDS) : https://cdn.badcaps-static.com/pdfs/...689b0b980c.pdf

The codes you mention are probably internal codes like manufacturing date, lot number etc etc

Yeah you could replace them with through hole capacitors, keep the ripple current equal or higher than the old spec, keep the esr equal or a bit lower (but not way lower), voltage rating can be higher as can the size (as long as it would fit inside the case)