Eeyore said:
Probably a bit. The problem is the rate of rise of voltage. Tantalums fare
best
when NOT driven from a low source impedance.
Why do you want to use one anyway and where in a circuit ? I'm puzzled
that you
can get tantalums easily and not electrolytics. It's usually the other way
round.
Graham
Hey there, thanks for the input. I am trying to put together a
build-it-yourself set of instuctions, and the schematic I have come up with
calls for a 1uF electrolytic (didn't know that tantalums were electrolytic,
BTW). I am trying to fix it so the builder can get everything at his or her
local RadioShack, which seems to stock 1uF tantalums but not 1uF (standard)
electrolytics. If need be, I can change the schematic to use the 4.7uF
(standard) electrolytic they stock, but was wondering if I could just use
the tantalum. It is used as the C in the R/C part of a 555 timing circuit.
(555 operating in monostable multivibrator mode, I believe. Still working
on my understanding of that.) If you like, I can email you the schematic,
but I dont wish to post it as I am hoping to eventually sell it along with
the instructions for building it. The tantalum, BTW, will be driven by a 9V
battery, hooked between the negative terminal and the two resistors
(10K/47K) that make up the rest of the timing determinate for the 555. Just
realized I can post the 555 part of the circuit and leave the rest out, as
that is nothing special. Let me know if you want to see it, and I will post
it to abse.
Thanks again.
Dave