SMD code 1230 — 123 Ω
A surface-mount resistor has no bands. This one is a four-digit marking: 123 × 10⁰. Parts marked this way are usually ±1% or tighter.
1230
reads as
123 Ω
How much it can take
| Across it | Dissipated | Smallest package that copes |
|---|---|---|
| 5 V | 203 mW | 1/2 W |
| 12 V | 1.17 W | 5 W |
What you can actually get
Parts made
1
at this value
Common packages
Codes you will mistake it for
One character apart from 1230. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.