With a tolerance letter
| Marking | Tolerance | Minimum | Maximum |
|---|---|---|---|
155J | ±5% | 1.43 µF | 1.57 µF |
155K | ±10% | 1.35 µF | 1.65 µF |
155M | ±20% | 1.2 µF | 1.8 µF |
Other ways it's marked
On schematics and parts lists, the same capacitor appears as 1u5, 1,500 nF or 1.5 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.