With a tolerance letter
| Marking | Tolerance | Minimum | Maximum |
|---|---|---|---|
335J | ±5% | 3.14 µF | 3.46 µF |
335K | ±10% | 2.97 µF | 3.63 µF |
335M | ±20% | 2.64 µF | 3.96 µF |
Other ways it's marked
On schematics and parts lists, the same capacitor appears as 3u3, 3,300 nF or 3.3 µF.
Where it's used
From 1 µF up, they filter power supplies, set timings and couple audio. Multilayer ceramic capacitors reach these values in small sizes; above about 10 µF, electrolytics are more common.