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Ohm Bands

3 kΩ resistor colour code

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

30×100±5%
Orange3Black0Red×100Gold±5%

Nominal

3 kΩ

3,000 ohms

Real range at ±5%

2.85 kΩ – 3.15 kΩ

A gold band allows this much drift.

Series

E24

E24 only — stocked less often.


Band by band

BandColourMeaning
1Orange1st digit — 3
2Black2nd digit — 0
3RedMultiplier — ×100
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 V1.1 mA3.63 mW1/8 W
5 V1.67 mA8.33 mW1/8 W
12 V4 mA48 mW1/8 W
24 V8 mA192 mW1/2 W

What you can actually get

Parts made

207

28th most of 1,465 values

In stock

80,706

across 8 of them

Cheapest at 100

$0.0012

each

Tolerances sold

±0.01% to ±5%

8 grades in all

Packages: 0603, 0805, 1206, 0402, 1210, 2512, 0201, 2010. Ratings: 30mW to 35W.

What ten of them actually cost

The price everyone quotes is the reel price. If you want ten, you cannot buy the reel — and the real figure is usually several times higher per piece.

Ten pieces

$0.15

$0.015 each · Cut Tape (CT) · minimum order 1

The reel price

$0.00127

each, but only from 100,000 pieces up

Sitting in stock

4,515,131

across 28 part numbers

Per piece, ten costs 11.8× the reel price. That gap is why a handful of resistors never costs what the headline price suggests.

Stocked in ±0.05% and ±0.1% and ±0.5% and ±1% and ±5%, rated 1/20 W to 1/4 W.

Cheapest part you can buy ten of: CR0402-FX-3001GLF by Bourns Inc. — see it at Digi-Key.

Assembly stock from the JLCPCB library, read 2026-09-24. Retail prices and stock from Digi-Key, read 2026-09-24. Prices move — check the product page before ordering. That is what a board house will place for you — not everything a distributor sells.

The same value, marked differently

Surface mount

302· three-digit

3001· four-digit, precision parts

Five bands

OrangeBlackBlackRedBrown

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 3 kΩ — which is why measuring beats reading when it matters.

If you do not have one

Standard values that land within 1% of 3 kΩ when combined.