SMD code 3973 — 397 kΩ
A surface-mount resistor has no bands. This one is a four-digit marking: 397 × 10³. Parts marked this way are usually ±1% or tighter.
3973
reads as
397 kΩ
How much it can take
| Across it | Dissipated | Smallest package that copes |
|---|---|---|
| 5 V | 63 µW | 1/8 W |
| 12 V | 363 µW | 1/8 W |
What you can actually get
Parts made
1
at this value
Common packages
1206
Codes you will mistake it for
One character apart from 3973. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.