0.22uF/50V tantalum 'T' case?

Question

SNAFUI've a small (really small) and dense design where I spec'ed (and somewhat checked for availability) a 0.22uF/50V T case tantalum from Vishay's 595D series, size being a major point. (ref. 595D224X9050T2T)Someone checked for real availability but mistook the T case reference for the A case one and gave me a full go.Now that PCBs are launched and we want to purchase components the screw up becomes embarassing: 14 weeks, MOQ 2500p., $2400 and we need maybe 100/200 pieces.Anyone knows where to find such beasts or some possible replacement?Oh and no, ceramics can't be used: temperature and voltage dependance, plus aging.-- Thanks,Fred.

legg · Accepted Answer

Even X7R?0805 body size 100V X7R is 0.06 from distribution.RL

Fred Bartoli · Answer

legg a écrit :Yup, not even X7R.Those are tuning some frequency response and are manually adjusted (X7R there) but the X7R variation with age/temp/voltage won't cut the mustard for the overall cap value.Tantalums are much better in this respect. Almost no voltage dependancy, small temperature coefficient and no aging.Ok, it seems we have now found some of them.-- Thanks,Fred.

Spehro Pefhany · Answer

Too big for you, but you can get 0.22/50V in NPO in the 1812footprint. Best regards, Spehro Pefhany-- "it's the network..."                          "The Journey is the reward"             Info for manufacturers:  software/hardware/analog  Info for designers:

Fred Bartoli · Answer

Spehro Pefhany a écrit :Interesting. Who's doing that?-- Thanks,Fred.

Spehro Pefhany · Answer

C4532C0G1H224J30ppm tempco. Not too shabby. Best regards, Spehro Pefhany-- "it's the network..."                          "The Journey is the reward"             Info for manufacturers:  software/hardware/analog  Info for designers:

Fred Bartoli · Answer

Spehro Pefhany a écrit :Thanks.-- Thanks,Fred.

0.22uF/50V tantalum 'T' case?

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