Samwha WB capacitor issues inside Samsung SyncMaster 943NWX

[lexwalker]

Had 2 units Samsung SyncMaster 943NWX monitor with random problems which for most of the time can't display anything (the LED keeps blinking only). Inside each unit were found 3 bulged Samwha capacitors which I proceed to replace. Now they worked fine. The issue is that 2 of those capacitors are not found in the official datasheet...

Inside the monitor...

- Samwha WB, 1000uF 25V 105C, 10x20mm, ?mA@100kHz, ?R@100kHz

Datasheet...

- Samwha WB, 1000uF 25V 105C, 12.5x20mm, 2360mA@100kHz, 0.025R@100kHz

Different can sizes from the official datasheet. This isn't the first time I've encountered odd capacitor can sizes that are not found in the datasheets (this includes those from CapXon and Ltec). Looking at the datasheet, I would assume that the ripple and ESR follows the can size? See attached picture. Would it be safe to assume that for all 10x20mm sizes, its 1820mA+0.027R@100kHz?

The replacement capacitors used were...

- Nichicon HE, 1000uF 25VDC 105C, 12.5x20mm, 1900mA@100kHz, 0.035R@100kHz

- Panasonic FR, 1000uF 25VDC, 10x20mm, 2180mA@100kHz, 0.020R@100kHz

I reckon Panasonic FMs are the most suitable, but I've ran out of them and only had these Panasonic FRs and Nichicon HEs in hand at that moment.

The other replacements are...

- Samwha WB, 1000uF 16VDC 105C, 10x20x5mm, 1820mA@100kHz, 0.027R@100kHz

with...

- Panasonic FR, 1000uF 16VDC, 10x16x5mm, 1790mA@100kHz, 0.028R@100kHz

Those are pretty close to each other, though again Panasonic FMs would be much more desireable (but don't have any left, need to order). Should I stay with the current replacements, or change them (to Panasonic FMs)?

[budm]

Re: Samwha WB capacitor issues inside Samsung SyncMaster 943NWX

I use FM, if I run out, I use FR or FC instead. No problem on any one of them.

[lexwalker]

Re: Samwha WB capacitor issues inside Samsung SyncMaster 943NWX

Currently testing one of the units with the following replacements...

- Samwha WB, 1000uF 16VDC 105C, 10x20mm, 1820mA@100kHz, 0.027R@100kHz

with...

- Nichicon HE, 1000uF 16VDC, 10x20mm, 1400mA@100kHz, 0.046R@100kHz

Seems to be holding up very well (stable), although its replacements are rather "under-specification" (ie. slightly lower ripple and a little higher ESR than original failed capacitor). According to the datasheets, that Nichicon HE has better specifications than the Panasonic FCs (for 10x20mm, 1220mA@100kHz and 0.052R@100kHz)...

Will it last for a very long time?