SMD code 47B — 30.1 Ω
A surface-mount resistor has no bands. This one is an EIA-96 marking: code 47 is 3.01 in the E96 series, B multiplies by 10. Parts marked this way are usually ±1%.
47B
reads as
30.1 Ω
The same part, in bands
The through-hole version of 30.1 Ω carries 5 colour bands instead.
Everything about 30.1 Ω — power ratings, what ten cost, what is in stock.
Same value, other markings
30.1 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 | 831 mW | 2 W |
| 12 V | 4.78 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
75
at this value
Ten pieces
$0.20
not the reel price
Common packages
0603 · 0805 · 1206 · 0402
Codes you will mistake it for
One character apart from 47B. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.