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Ohm Bands

SMD code 1001 — 1 kΩ

A surface-mount resistor has no bands. This one is a four-digit marking: 100 × 10¹. Parts marked this way are usually ±1% or tighter.

1001

reads as

1 kΩ

The same part, in bands

The through-hole version of 1 kΩ carries 4 colour bands instead.

10×100±5%
Brown1Black0Red×100Gold±5%

Everything about 1 kΩ — power ratings, what ten cost, what is in stock.

Same value, other markings

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 V25 mW1/8 W
12 V144 mW1/2 W

What you can actually get

Parts made

311

at this value

Ten pieces

$0.21

not the reel price

Common packages

0603 · 1206 · 0402 · 0805

Codes you will mistake it for

One character apart from 1001. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.