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Four Bands

240 Ω resistor colour code

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

24×10±5
Red2Yellow4Brown×10Gold±5%

Nominal

240 Ω

240 ohms

Real range at ±5%

228 Ω – 252 Ω

A gold band allows this much drift.

Series

E24

E24 only — stocked less often.


Band by band

BandColourMeaning
1Red1st digit — 2
2Yellow2nd digit — 4
3BrownMultiplier — ×10
4GoldTolerance — ±5%

The same value on a five-band part

Precision resistors carry three significant digits instead of two, so the same 240 Ω looks different.

RedYellowBlackBrownBrown