SMD code 30S — 0.2 Ω
A surface-mount resistor has no bands. This one is an EIA-96 marking: code 30 is 2 in the E96 series, S multiplies by 0.1. Parts marked this way are usually ±1%.
30S
reads as
0.2 Ω
The same part, in bands
The through-hole version of 0.2 Ω carries 4 colour bands instead.
Everything about 0.2 Ω — power ratings, what ten cost, what is in stock.
Same value, other markings
0.2 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 | 125 W | no standard part — needs a power resistor or a heatsink |
| 12 V | 720 W | no standard part — needs a power resistor or a heatsink |
Codes you will mistake it for
One character apart from 30S. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.