One of the most popular of the thru-hole style capacitors are the dipped tantalum capacitors.

A capacitor is a passive electrical component with two terminals which is used in order to store energy in an electric field.

The bypass capacitor is an energy storage device that provides energy to the local device, it can even out the output of the regulator and reduce the load demand. Like a small rechargeable battery, the bypass capacitor can be charged and discharged to the device.

Ceramic dielectric capacitors, also known as ceramic chip capacitors, use ceramics as the medium, coat metal films and sinter at high temperature to form electrodes, and then weld lead wires on the electrodes, and coat the surface with protective enamel, or use epoxy resin and phenolic formaldehyde.

RoHS-compliant is often equated with “lead-free”.

Common failures of capacitors. When one of the following conditions of the capacitor is found, the power should be cut off immediately.