Ceramic Capacitors: A Quick Look

Capacitors have a lot of applications in the world of electronics. A lot of appliances that we use on a daily basis, from our phones, to our television sets, heaters, and the like, all have capacitors of different types installed in them. From Ceramic to Film, Variable, Class X and Y, to High Voltage Ceramic Capacitors, different capacitors suit different needs of people. The most common of these types are the Ceramic Capacitor, which is made of various types of ceramic materials, and hence its name. There are 3 kinds of classes for this type of capacitor, and this article will take a look at each of these three.

Class 1 Ceramic Capacitors

The best in terms of voltage stability is this type of Ceramic Capacitor. Apart from stable voltage, this type of Capacitor offers the best frequency and temperature as well. They have the lowest power loss and are best for compensating temperature effects in a circuit. The most common materials through which these are made of include Zinc, Titanium Dioxide, Niobium, Magnesium, Tantalum, Strontium, and Cobalt.

Class 2 Ceramic Capacitors

These type of Ceramic Capacitors are characterized by their dielectric having a high permittivity, as well as being more volumetrically efficient compared to that of Class 1 Ceramic Capacitors. They are characterized by a nonlinear change in capacitance with respect to the temperature range. They are bes for decoupling/coupling or bypass applications. These capacitors are made of materials that are ferroelectric in nature, such as aluminum silicate, barium titanate, aluminum oxide, and the like.

Class 3 Ceramic Capacitors

The Capacitors of the highest permittivity are the Class 3 barrier layer, which has a rate of up to 50,000. This gives them a better efficiency volumetrically compared to class 2 capacitors. They also have, however, low stability and accuracy. These are made of doped ferro electrics like barium titanate.