Aluminum electrolytic caps are the go-to general purpose capacitors that can be used in most applications that require larger capacitance values of ≥ 1uF and can handle a polarized capacitor. These are the latest technology miniature variety with radial leads to keep the size of the component as compact as possible to take up minimum board space. Applications include filter circuits like high/Low pass filter etc, remove noise from a circuit, smoothing ripples in converters, fading LED and in resonant circuits.