SMD code 407 — 400 MΩ
A surface-mount resistor has no bands. This one is a three-digit marking: 40 × 10⁷. Parts marked this way are usually ±5% or ±2%.
407
reads as
400 MΩ
Same value, other markings
400 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 | 0.0625 µW | 1/8 W |
| 12 V | 0.36 µW | 1/8 W |
What you can actually get
Parts made
10
at this value
Common packages
1206 · 2512 · 0402 · 0603
Codes you will mistake it for
One character apart from 407. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.