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Ohm Bands

SMD code 2151 — 2.15 kΩ

A surface-mount resistor has no bands. This one is a four-digit marking: 215 × 10¹. Parts marked this way are usually ±1% or tighter.

2151

reads as

2.15 kΩ

The same part, in bands

The through-hole version of 2.15 kΩ carries 5 colour bands instead.

215×10±1%
Red2Brown1Green5Brown×10Brown±1%

Everything about 2.15 kΩ — power ratings, what ten cost, what is in stock.

Same value, other markings

2.15 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 V11.6 mW1/8 W
12 V67 mW1/4 W

What you can actually get

Parts made

104

at this value

Ten pieces

$0.20

not the reel price

Common packages

1206 · 0805 · 0603 · 0402

Codes you will mistake it for

One character apart from 2151. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.