SMD code 4R71 — 4.71 Ω
A surface-mount resistor has no bands. This one is a four-digit marking: the R is the decimal point — 4.71 Ω. Parts marked this way are usually ±1% or tighter.
4R71
reads as
4.71 Ω
How much it can take
| Across it | Dissipated | Smallest package that copes |
|---|---|---|
| 5 V | 5.31 W | no standard part — needs a power resistor or a heatsink |
| 12 V | 30.6 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
1
at this value
Common packages
0603
Codes you will mistake it for
One character apart from 4R71. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.