SMD code 4205 — 42 MΩ
A surface-mount resistor has no bands. This one is a four-digit marking: 420 × 10⁵. Parts marked this way are usually ±1% or tighter.
4205
reads as
42 MΩ
Same value, other markings
42 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 | 0.595 µW | 1/8 W |
| 12 V | 3.43 µW | 1/8 W |
What you can actually get
Parts made
1
at this value
Common packages
2512
Codes you will mistake it for
One character apart from 4205. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.