The difference between chip capacitors and chip electrolytic capacitors

SMD capacitors are also called MLCCs, also known as multilayer (multilayer, laminated) chip ceramic capacitors. They are small in size, chip electrolytic capacitors, chip aluminum electrolytic capacitors, and the cathode material is electrolyte. The following is an explanation of the difference between the two by the editor of Pingshang Technology.

Chip capacitors:

1. The full name of SMD capacitor is multilayer chip ceramic capacitor, which is the general name for most capacitors that can be packaged by SMD, while electrolytic capacitor is a type of capacitor property classification.

2. SMD capacitors are divided into non-polar capacitors and polar capacitors. Polar capacitors are generally called electrolytic capacitors. However, some electrolytic capacitors are not suitable for SMD packaging, such as aluminum electrolytic capacitors for energy-saving lamps.

3. SMD capacitors are generally small in size, small in capacity, and relatively high in accuracy, while electrolytic capacitors are relatively large in volume and capacity, and there are many types.

SMD electrolytic capacitors:

1. The capacitance per unit volume is very large, tens to hundreds of times larger than other types of capacitors.

2. The rated capacity can be very large, easily tens of thousands of μf or even a few f (but not comparable to the electric double layer capacitance).

3. The price has an overwhelming advantage over other types, because the constituent materials of electrolytic capacitors are common industrial materials, such as aluminum and so on. The equipment for manufacturing electrolytic capacitors is also common industrial equipment, which can be mass-produced with relatively low cost.

The disadvantages of SMD electrolytic capacitors are dielectric loss, large capacity error, poor high temperature resistance, and prone to failure due to long storage time.