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Ohm Bands

SMD code 2212 — 22.1 kΩ

A surface-mount resistor has no bands. This one is a four-digit marking: 221 × 10². Parts marked this way are usually ±1% or tighter.

2212

reads as

22.1 kΩ

The same part, in bands

The through-hole version of 22.1 kΩ carries 5 colour bands instead.

221×100±1%
Red2Red2Brown1Red×100Brown±1%

Everything about 22.1 kΩ — power ratings, what ten cost, what is in stock.

Same value, other markings

22.1 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 itDissipatedSmallest package that copes
5 V1.13 mW1/8 W
12 V6.52 mW1/8 W

What you can actually get

Parts made

97

at this value

Ten pieces

$0.12

not the reel price

Common packages

0603 · 0402 · 1206 · 0805

Codes you will mistake it for

One character apart from 2212. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.