SMD code 45X — 0.287 Ω
A surface-mount resistor has no bands. This one is an EIA-96 marking: code 45 is 2.87 in the E96 series, X multiplies by 0.1. Parts marked this way are usually ±1%.
45X
reads as
0.287 Ω
Same value, other markings
0.287 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 | 87.1 W | no standard part — needs a power resistor or a heatsink |
| 12 V | 502 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
1
at this value
Common packages
0612
Codes you will mistake it for
One character apart from 45X. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.