102 capacitor: 1 nF (0.001 µF)
A capacitor marked 102 has a capacitance of 1 nF. The first two digits (10) are the value in picofarads and the last digit (2) is the number of zeros to add.
102 in every unit
| Picofarads | 1,000 pF |
|---|---|
| Nanofarads | 1 nF |
| Microfarads | 0.001 µF |
| Farads | 1.0 × 10^-9 |
How to read 102
- Take the first two digits: 10.
- Add 2 zeros: 1,000 pF.
- Convert: 1,000 pF ÷ 1,000 = 1 nF; ÷ 1,000,000 = 0.001 µF.
With tolerance and voltage letters
| Marking | Meaning |
|---|---|
102J | 1 nF, ±5% |
102K | 1 nF, ±10% |
102M | 1 nF, ±20% |
1H102K | 50 V, 1 nF, ±10% |
2A102J | 100 V, 1 nF, ±5% |
Typical uses
1 nF capacitors are used for RF bypassing, snubbers, high-frequency filters and as timing capacitors for fast oscillators.
Reactance at 50 Hz–10 MHz, RC time constants and how 1 nF is marked in other notations: 1 nF capacitor reference.
Related codes
FAQ
What is the value of a 102 capacitor?
1 nF (0.001 µF): 10 × 10^2 pF = 1,000 pF.
What does 102J, 102K or 102M mean?
The letter is the tolerance: J = ±5%, K = ±10%, M = ±20%. The value is still 1 nF.
Can I replace a 102 capacitor with a different type?
Usually, if the capacitance, voltage rating and temperature characteristic are at least as good. Check the rated voltage, and remember ceramic capacitors lose capacitance at high DC voltage.
Capacitor code calculator →All codes
← 101 capacitor · 103 capacitor →