SMD code 250 — 25 Ω
A surface-mount resistor has no bands. This one is a three-digit marking: 25 × 10⁰. Parts marked this way are usually ±5% or ±2%.
250
reads as
25 Ω
How much it can take
| Across it | Dissipated | Smallest package that copes |
|---|---|---|
| 5 V | 1 W | 2 W |
| 12 V | 5.76 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
7
at this value
Common packages
2512 · TO-220-2 · 0402 · TO-220
Codes you will mistake it for
One character apart from 250. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.