SMD code 3904 — 3.9 MΩ
A surface-mount resistor has no bands. This one is a four-digit marking: 390 × 10⁴. Parts marked this way are usually ±1% or tighter.
3904
reads as
3.9 MΩ
The same part, in bands
The through-hole version of 3.9 MΩ carries 4 colour bands instead.
Everything about 3.9 MΩ — power ratings, what ten cost, what is in stock.
Same value, other markings
3.9 MΩ 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 | 6.41 µW | 1/8 W |
| 12 V | 36.9 µW | 1/8 W |
What you can actually get
Parts made
68
at this value
Ten pieces
$0.19
not the reel price
Common packages
1210 · 2512 · 1206 · 2010
Codes you will mistake it for
One character apart from 3904. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.