Skip to content
Ohm Bands

SMD code 5101 — 5.1 kΩ

A surface-mount resistor has no bands. This one is a four-digit marking: 510 × 10¹. Parts marked this way are usually ±1% or tighter.

5101

reads as

5.1 kΩ

The same part, in bands

The through-hole version of 5.1 kΩ carries 4 colour bands instead.

51×100±5%
Green5Brown1Red×100Gold±5%

Everything about 5.1 kΩ — power ratings, what ten cost, what is in stock.

Same value, other markings

5.1 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 V4.9 mW1/8 W
12 V28.2 mW1/8 W

What you can actually get

Parts made

185

at this value

Ten pieces

$0.15

not the reel price

Common packages

0805 · 1206 · 0603 · 0402

Codes you will mistake it for

One character apart from 5101. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.