SMD code 81C — 681 Ω
A surface-mount resistor has no bands. This one is an EIA-96 marking: code 81 is 6.81 in the E96 series, C multiplies by 100. Parts marked this way are usually ±1%.
81C
reads as
681 Ω
The same part, in bands
The through-hole version of 681 Ω carries 5 colour bands instead.
Everything about 681 Ω — power ratings, what ten cost, what is in stock.
Same value, other markings
681 Ω 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 | 36.7 mW | 1/8 W |
| 12 V | 211 mW | 1/2 W |
What you can actually get
Parts made
92
at this value
Ten pieces
$0.21
not the reel price
Common packages
0805 · 1206 · 0402 · 0603
Codes you will mistake it for
One character apart from 81C. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.