SMD code 503 — 50 kΩ
A surface-mount resistor has no bands. This one is a three-digit marking: 50 × 10³. Parts marked this way are usually ±5% or ±2%.
503
reads as
50 kΩ
Same value, other markings
50 kΩ 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 | 500 µW | 1/8 W |
| 12 V | 2.88 mW | 1/8 W |
What you can actually get
Parts made
16
at this value
Common packages
TO-247-2 · 0805 · 2010 · 2512
Codes you will mistake it for
One character apart from 503. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.