What is voltage rating on capacitor?

The voltage rating of a capacitor is a measure of how strong its insulation is. A 35V cap can withstand at least 35 volts applied across it (a higher voltage may cause bad things like a short through the cap and burnup).

How do you read capacitor value codes?

Read codes that contain letters instead.

  1. If the letter is an R, replace it with a decimal point to get the capacitance in pF. For example, 4R1 means a capacitance of 4.1pF.
  2. If the letter is p, n, or u, this tells you the units (pico-, nano-, or microfarad).
  3. A code like “1A253” is actually two codes.

Does voltage rating on capacitors matter?

The voltage on a capacitor is not the rating, but rather how much voltage you can expose the capacitor to. For example, if your voltage source is 9 volts, you should choose a capacitor that is at least double the voltage, 18 volts or even 27 volts to be safe.

What does 25V on a capacitor mean?

The voltage rating of a capacitor is meant its maximum operating voltage or working voltage. For example, a capacitor has a voltage rating of 25V, so the capacitor can work properly and safely without any damage up to the maximum voltage of 25V. If we apply more than 25V across that capacitor, it will damage.

Can I use a 50v capacitor instead of a 25V?

Yes. Just don’t go below 25v. The 4.7uF is an “exact” value, whereas the 25v is a maximum rating.

What voltages are in capacitors?

What is capacitor code?

Generally the code consists of 2 or 3 numbers and an optional tolerance letter code to identify the tolerance. Where a two number code is used the value of the capacitor only is given in picofarads, for example, 47 = 47 pF and 100 = 100pF etc.

Can I use a 50V capacitor instead of a 25V?

Can I use a higher voltage rating capacitor?

The voltage rating is just an upper limit, which must never be exceeded in a functional circuit. Replacing a capacitor with something that has a higher voltage rating is always safe. The only problem there is that a capacitor rated for a higher voltage is often physically larger, everything else being equal.

Can I use 25V capacitor instead of 16V?

Yes. The voltage rating is the naximun that the cap can handle. 25 is higher than 16 so you are ok.