NRSY caps: Interesting date code observation

[gdement]

I pulled 14 of these NRSY 1000uF 10v 10mm caps from a Supermicro P4SBA. They don't have any series marking, but temp range goes down to -55C.

13 of them were bulged and tested high ESR. They all have the date code 0108.
1 of them looks good and tested normal ESR. It has the date code 0042. Otherwise identical to the others.


The good cap was in parallel with bad ones on Vmem. So it had the same stress the others did.

[PCBONEZ]

Re: NRSY caps: Interesting date code observation

Those are NRSY ~Brand~
Not same as NIC NRSY series.
[I think you know that. Just mentioning it for the lost soles.]

I betcha...
The 0042 was made before the bad P50 (or whatever) stolen electrolyte fiasco and those 0108 are loaded with the bad formula.

.

[gdement]

Re: NRSY caps: Interesting date code observation

Yeah, I remember reading an old thread here recently about the bad NRSY brand vs series (made by a more reputable company). Certainly confusing. Seems like somebody would have filed a trademark suit, but I'm no lawyer.

[PCBONEZ]

Re: NRSY caps: Interesting date code observation

Supermicro seems to like the NRSY brand for some reason.
Makes no sense to me because I see those cheapies mixed in with good quality Sanyo WG on the same boards.