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Ohm Bands

Red Yellow Yellow Gold — 240 kΩ

Read left to right, starting from the end where the bands are grouped. The gold band is the tolerance and always sits alone at the far end.

24×10k±5%
Red2Yellow4Yellow×10kGold±5%

Value

240 kΩ

Range at ±5%

228 kΩ – 252 kΩ

Standard value

E24

Full page for 240 kΩ →


What each band says

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

In a circuit

Across 5 V

20.8 µA · 104 µW · 1/8 W part

Across 12 V

50 µA · 600 µW · 1/8 W part

Surface-mount marking for the same value: 244.

If you misread one band

Brown and red, or orange and red, are easy to confuse under a desk lamp. These are the codes one band away from this one.