On 26/04/20 10:05, stur_mm via
groups.io wrote:
What¡¯s
the best manufacturer for Electrolytics, 180/220uF(Know you
suggested 220uF) going to order some today from RS
components..
I tend to use Nichicon, Panasonic, Rubycon.
Beyond getting something that is mechanically OK, look for
- temperature rating of 105C, the? lifetime,
- ripple current,
- frequency at which the ripple current is measured (gives hints
as to whether it is a "mains or SMPS" capacitor)
- ESR (usually physically larger is lower ESR)
- and availability!
For capacitance, usually larger is better, but be cautious of
uncontrolled inrush currents. Many modern capacitors have tighter
capacitance limits than the original capacitors.
For voltage, higher is better - except that if you go too high then
there can be too little leakage current to form the dielectric.
(ISTR the Farnell search mechanism used to be better than RS's, but
that seems to have changed. Caution: I'm prejudiced against Avnet, I
must admit!)
