Discussion in "8051 Discussion Forum" started by    anee    Apr 7, 2008.
Wed Apr 09 2008, 08:03 pm
#21
If it ain't broke,don't fix it.. :-)
Wed Apr 09 2008, 08:21 pm
#22
He he... il remenber that always
Fri Apr 11 2008, 07:13 pm
#23
well actually a good tradeoff between tantalum and ceramic capacitors is another family of capacitors called polypropylene capacitors which were previously costlier but nowadays are quite cheap (well .... cheaper than tantalum ). these capacitors are usually the next best aternatives for ceramic caps and the regular ones available can have a value upto 1uF. these capacitors have excellent long term reliability/stability and are preferred in analog circuits using integration/differentiation,RC oscillaters,succesive approximation ADCs...etc
Tags polypropylene capacitors
Sat Apr 12 2008, 02:11 am
#24
Yeah and they're indispensable in audio ckts as well,esp in the signal path(where tants,electros and even ceramics suck big time).
Sat Apr 12 2008, 02:17 am
#25
Hi Amit, don't get confused, for the 0.1 or 104 we regularly use by the VCC pin, use conformally coated radial capacitors (small yellow mainly). They are basically ceramic, also known as multilayer ceramic capacitors. They have very good temp stability, and are normally 10% tol, temp range -55 to +125deg C, dielectric X7R(?) and Z5U(?). As pdi said, bit costlier than ceramic disc, but much cheaper than tant. :-)
It feels good to give gayaan
:bye

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