My first thought was that I bought a counterfeit part. The STMicro part has worked well and I like their snaphat option too. I will have to look at making up a few adapter boards for a couple of Solartrons so I can dump those Varta batteries and use something that won't leak everywhere.
Todd Sent from my iPad > On Aug 7, 2014, at 10:34, Chuck Harris <[email protected]> wrote: > > Hi Todd, > > There is nothing that a human could endure that that part couldn't > take for a couple of years without harm. > > The Chinese run a booming market in taking US scrap boards, removing > interesting parts, welding on new leads, adding plating, sandblasting > off old part labels, and putting on new. They will do both laser > engraving and stenciling... all this on scrap parts... which they > sell as new, or new old stock (depending on which gets more money). > > I wonder if Jameco got your DS1220 from a Chinese "refurbisher" that > simply blasted off the old date code and put on a new? > > I would send a note to Jameco telling them what happened, and I would > send a picture of the top of the part to Maxim telling them what > happened. Maxim can tell you pretty quickly if the part is counterfeit. > > And, they will probably both send you a replacement either way. > > -Chuck Harris > > Todd Micallef wrote: >> Mark, >> >> I am using the STMicroelectronics M48Z12 series in at least one of my >> 3458A's. I had trouble sourcing one of the two different memory modules >> from a reputable seller when I replaced my NVRAM. I purchased a DS1220 >> previously from Jameco and it died shortly afterward. The datecode on the >> Jameco part was several months old and may have been stored improperly. >> >> The only thing I don't like about the STMicro NVRAM is that they use a >> three digit datecode. One digit is for the year and two for the week. It >> took me a while to track down a document to decipher their labeling system. >> >> Todd > _______________________________________________ > volt-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
