2 kΩ resistor colour code
Four bands: Red · Black · Red · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
2 kΩ
2,000 ohms
Real range at ±5%
1.9 kΩ – 2.1 kΩ
A gold band allows this much drift.
Series
E24
E24 only — stocked less often.
Band by band
| Band | Colour | Meaning |
|---|---|---|
| 1 | Red | 1st digit — 2 |
| 2 | Black | 2nd digit — 0 |
| 3 | Red | Multiplier — ×100 |
| 4 | Gold | Tolerance — ±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 it | Current | Dissipated | Package to pick |
|---|---|---|---|
| 3.3 V | 1.65 mA | 5.44 mW | 1/8 W |
| 5 V | 2.5 mA | 12.5 mW | 1/8 W |
| 12 V | 6 mA | 72 mW | 1/4 W |
| 24 V | 12 mA | 288 mW | 1 W |
What you can actually get
Parts made
233
8th most of 1,465 values
In stock
90,958
across 15 of them
Cheapest at 100
$0.0013
each
Tolerances sold
±0.01% to ±5%
11 grades in all
Packages: 0805, 1206, 0603, 0402, 1210, 2512, 2010, 0201. 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
$0.31
$0.031 each · Cut Tape (CT) · minimum order 1
The reel price
$0.00406
each, but only from 100,000 pieces up
Sitting in stock
3,746,000
across 1 part numbers
Per piece, ten costs 7.6× the reel price. That gap is why a handful of resistors never costs what the headline price suggests.
Stocked in ±1%, rated 1/10 W.
Cheapest part you can buy ten of: ERJ-2RKF2001X by Panasonic Industry — 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
Five bands
RedBlackBlackRedBrown
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 2 kΩ — which is why measuring beats reading when it matters.
- 1.91 kΩ1.8909 kΩ–1.9291 kΩ
- 1.96 kΩ1.9404 kΩ–1.9796 kΩ
- 2.05 kΩ2.0295 kΩ–2.0705 kΩ
- 2.1 kΩ2.079 kΩ–2.121 kΩ
- 2.2 kΩ2.09 kΩ–2.31 kΩ
If you do not have one
Standard values that land within 1% of 2 kΩ when combined.