The same value, written every way
| 3-digit code | 151 |
|---|---|
| IEC code | 150p |
| Picofarads | 150 pF |
| Nanofarads | 0.15 nF |
| Microfarads | 0.00015 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 |
|---|---|
| 151J | 150 pF, ± 5 % |
| 151K | 150 pF, ± 10 % |
| 151M | 150 pF, ± 20 % |
| 151Z | 150 pF, +80 / −20 % |
| 2A151J | 150 pF, ± 5 %, rated 100 V |
| 1H151K | 150 pF, ± 10 %, rated 50 V |
Where you meet it
Picofarad values are used in RF circuits, oscillators and small filters, mostly as C0G (NP0) ceramics that keep their value with temperature.
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 151 capacitor?
A capacitor marked 151 is 150 pF: 15 followed by one zero in picofarads, 150 pF, which is also 0.15 nF = 0.00015 µF.
What is 151 in µF and nF?
151 = 150 pF = 0.15 nF = 0.00015 µF.
What do 151J, 151K and 151M mean?
The same capacitance, 150 pF, with a tolerance of ± 5 % (J), ± 10 % (K) or ± 20 % (M).
Other common codes
101 152 153 154 221 331 471 681
Code system: EIA three-digit capacitance code and IEC 60062 tolerance letters.