SMD code 312 — 3.1 kΩ
A surface-mount resistor has no bands. This one is a three-digit marking: 31 × 10². Parts marked this way are usually ±5% or ±2%.
312
reads as
3.1 kΩ
Same value, other markings
3.1 kΩ is printed several ways depending on the part's precision and size. A board can carry all of them at once.
How much it can take
| Across it | Dissipated | Smallest package that copes |
|---|---|---|
| 5 V | 8.06 mW | 1/8 W |
| 12 V | 46.5 mW | 1/8 W |
What you can actually get
Parts made
2
at this value
Common packages
0603 · 0402
Codes you will mistake it for
One character apart from 312. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.