another type of Capacitor
polarized
large level of farad typically 1uF to 40mF
can have high working voltage up to 350V
High ripple current capability
High leakage & poor tolerance
Poor performance at high frequencies
they are terrible but can have very huge farads
overheading or overleading may cause to explode
they dry out in time, increases series resistance
higher temp, shorter life
if you mount this near heatsink, it will make it fucked up. need to be in cool place not near to the heat elements. But not too cool, then it makes it high esr
you need to use quality ones
for reliable design= use a couple of that in parallel, find good low esr for smps
reverse voltage is about 1.5V, take care!
cheaper
high esr, low lifetime