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Four Bands

100 kΩ resistor colour code

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

10×10000±5
Brown1Black0Yellow×10 kGold±5%

Nominal

100 kΩ

100,000 ohms

Real range at ±5%

95 kΩ – 105 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
3YellowMultiplier — ×10 k
4GoldTolerance — ±5%

The same value on a five-band part

Precision resistors carry three significant digits instead of two, so the same 100 kΩ looks different.

BrownBlackBlackYellowBrown