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Four Bands

1 kΩ resistor colour code

Four bands: Brown · Black · Red · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.

10×100±5
Brown1Black0Red×100Gold±5%

Nominal

1 kΩ

1,000 ohms

Real range at ±5%

950 Ω – 1.05 kΩ

A gold band allows this much drift.

Series

E6

Held in almost every parts drawer.


Band by band

BandColourMeaning
1Brown1st digit — 1
2Black2nd digit — 0
3RedMultiplier — ×100
4GoldTolerance — ±5%

The same value on a five-band part

Precision resistors carry three significant digits instead of two, so the same 1 kΩ looks different.

BrownBlackBlackRedBrown