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Ohm Bands

1.2 MΩ resistor colour code

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

12×100k±5%
Brown1Red2Green×100,000Gold±5%

Nominal

1.2 MΩ

1,200,000 ohms

Real range at ±5%

1.14 MΩ – 1.26 MΩ

A gold band allows this much drift.

Series

E12

Held in almost every parts drawer.


Band by band

BandColourMeaning
1Brown1st digit — 1
2Red2nd digit — 2
3GreenMultiplier — ×100,000
4GoldTolerance — ±5%

How much it can take

Current and dissipation across the resistor, and the package you need. The suggested rating keeps a factor of two in hand, which is what anyone building a board actually does.

Across itCurrentDissipatedPackage to pick
3.3 V2.75 µA9.07 µW1/8 W
5 V4.17 µA20.8 µW1/8 W
12 V10 µA120 µW1/8 W
24 V20 µA480 µW1/8 W

What you can actually get

Parts made

94

280th most of 1,465 values

In stock

2,497

across 3 of them

Cheapest at 100

$0.0025

each

Tolerances sold

±0.1% to ±5%

6 grades in all

Packages: 0805, 0603, 1206, 0402, 2010, 0201, 2512, 1210. Ratings: 50mW to 5W.

Assembly stock from the JLCPCB library, read 2026-09-24. That is what a board house will place for you — not everything a distributor sells.

The same value, marked differently

Surface mount

125· three-digit

1204· four-digit, precision parts

Five bands

BrownRedBlackGreenBrown

Three significant digits and a ±1% band.

Values that can overlap this one

At ±5% the tolerance bands of neighbouring values run into each other. A part sold as one of these could measure the same as a 1.2 MΩ — which is why measuring beats reading when it matters.

If you do not have one

Standard values that land within 1% of 1.2 MΩ when combined.