✔ Tantalum Capacitor Value Markings

Tantalum Capacitor Value Markings

- June 24, 2019

You need to identify them before re using and your only information source is a few markings which may be found on the top side of any smd tantalum capacitor. The first two form the significant figures and the third is the multiplier.

Markings

Types Of Capacitors

Capacitor Colour Codes And Colour Code Descriptions

Typically the markings on a capacitor may give the figures like 22 and 6v.

Tantalum capacitor value markings. A tantalum electrolytic capacitor is an electrolytic capacitor a passive component of electronic circuits. In particular 226 stands for 22106 picofarads ie. Im having trouble identifying a blown smd tantalum capacitor.

The markings on smd tantalum capacitors normally consist of three numbers. The markings on it are 10 35l which i took to be the capacitance voltage rating and tolerance but looking up that component on the schematic provided with it that same component is labeled with the value 47u16v. This indicates a 22uf capacitor with a maximum voltage of 6v.

They are made of tantalum metal which acts as an anode covered by a layer of oxide which acts as the dielectric surrounded by a conductive cathode. Smd tantalum capacitor markings. The topmost value to the left is the value of the capacitance of the capacitor in unit microfarads uf.

So here we start. What are tantalum capacitors. Tantalum capacitors like aluminum electrolytics are polarized capacitors.

These figures indicate that the capacitor is of 22uf and 6v is its maximum voltage. Tantalum capacitor polarity markings. The picofarad code refers to capacitance indeed.

Markings of leaded tantalum capacitor. Leaded tantalum capacitors generally have their values marked in microfarads uf. Leaded tantalum capacitor markings.

In the example above this value is 47 so the capacitor has a capacitance of 47uf. Values are in picofarads. Below is a diagram of a tantalum capacitor with the meanings of its components labeled.

It consists of a pellet of tantalum metal as an anode covered by an insulating oxide layer that forms the dielectric surrounded by liquid or solid electrolyte as a cathode. In this article we go over the polarity markings found on a tantalum capacitor so that we can determine which lead is the positive lead and which lead is the negative one. An example of a typical marking observed on a capacitor is 22 and 6v.

Therefore the smd tantalum capacitor shown below has a value of 47 x 10 5 pf which works out to be 47uf. The unit microfarad uf is used to mark the values in the leaded tantalum capacitors. Tantalum capacitors are a subtype of electrolytic capacitors.