SMD code 180 — 18 Ω
A surface-mount resistor has no bands. This one is a three-digit marking: 18 × 10⁰. Parts marked this way are usually ±5% or ±2%.
180
reads as
18 Ω
The same part, in bands
The through-hole version of 18 Ω carries 4 colour bands instead.
Everything about 18 Ω — power ratings, what ten cost, what is in stock.
Same value, other markings
18 Ω 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 | 1.39 W | 5 W |
| 12 V | 8 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
165
at this value
Ten pieces
$0.17
not the reel price
Common packages
0805 · 1206 · 0603 · 0402
Codes you will mistake it for
One character apart from 180. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.