Tantalum capacitors are polarized capacitors. We have provided the table of capacitor voltage table in the SMD section below. In the case of SMD tantalum capacitors, working voltage is marked in alphabetical codes i.e. The unit of working voltage is always in volts(V). (For ☑0%, the letter code “K” is used and for ☒0%, the letter code “M” is used).įor the radial tantalum capacitors after the capacitance code, another two-digit code shows the maximum voltage rating of the capacitor. Since tantalum capacitors are smaller it has two different tolerance values. To denote the capacitance unit, sometimes the ‘u’ letter is printed after two digits. On radial tantalum capacitors, the first two-digit of the code shows the capacitance value in microfarads(uF). They have capacitance values ranging between nanofarads (nF) to milifarads (mF).
The size of tantalum capacitors is relatively smaller than aluminum capacitors and so, it is difficult to print their capacitance directly, that’s why manufacturers mention only the codes for it. Tantalum capacitors are DC capacitors similar to electrolytic capacitors. They are smaller in size than aluminum electrolytic capacitors and use tantalum metal which results in a high capacitance value per volume. Tantalum capacitors are a subtype of electrolytic capacitors. Read also: Why Are Capacitors Used in DC Circuits if they Block DC? (Solved) How to read a Tantalum Capacitor value? Note: If capacitors are connected incorrectly they can be damaged, and in some cases, they might also explode. Sometimes these capacitors (shaped like tin cans) use a colored bar or a ring-shaped depression to show polarity, this mark designates the negative end and must be connected with the negative terminal of the circuit.Besides this, we can also see the positive lead of the capacitor is longer than its negative lead, so you can identify their polarity on the basis of lead size.
Connect ‘+’ with the positive terminal and ‘-’ with the negative one of the circuit.
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