SMD code 2420 — 242 Ω
A surface-mount resistor has no bands. This one is a four-digit marking: 242 × 10⁰. Parts marked this way are usually ±1% or tighter.
2420
reads as
242 Ω
How much it can take
| Across it | Dissipated | Smallest package that copes |
|---|---|---|
| 5 V | 103 mW | 1/4 W |
| 12 V | 595 mW | 2 W |
What you can actually get
Parts made
1
at this value
Common packages
Codes you will mistake it for
One character apart from 2420. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.