The same value, written every way
| 3-digit code | 222 |
|---|---|
| IEC code | 2n2 |
| Picofarads | 2,200 pF |
| Nanofarads | 2.2 nF |
| Microfarads | 0.0022 µF |
| Standard series | E6 value |
With a letter or a voltage code
The letter after the code is the tolerance, and a digit-letter pair in front of it is the rated voltage on film capacitors and some ceramics:
| Marking | Meaning |
|---|---|
| 222J | 2.2 nF, ± 5 % |
| 222K | 2.2 nF, ± 10 % |
| 222M | 2.2 nF, ± 20 % |
| 222Z | 2.2 nF, +80 / −20 % |
| 2A222J | 2.2 nF, ± 5 %, rated 100 V |
| 1H222K | 2.2 nF, ± 10 %, rated 50 V |
Where you meet it
Nanofarad values are used in filters, snubbers, timing and coupling, as ceramic (X7R, C0G) or film capacitors.
Open the capacitor code calculator →Have a letter, a voltage code or a different value? The calculator reads any marking and gives the code for any value.
Frequently asked questions
What is a 222 capacitor?
A capacitor marked 222 is 2.2 nF: 22 followed by 2 zeros in picofarads, 2,200 pF, which is also 0.0022 µF.
What is 222 in µF and nF?
222 = 2,200 pF = 2.2 nF = 0.0022 µF.
What do 222J, 222K and 222M mean?
The same capacitance, 2.2 nF, with a tolerance of ± 5 % (J), ± 10 % (K) or ± 20 % (M).
Other common codes
102 152 220 221 223 224 225 226 332 472 682
Code system: EIA three-digit capacitance code and IEC 60062 tolerance letters.