30 kΩ resistor colour code
Four bands: Orange · Black · Orange · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
30 kΩ
30,000 ohms
Real range at ±5%
28.5 kΩ – 31.5 kΩ
A gold band allows this much drift.
Series
E24
E24 only — stocked less often.
Band by band
| Band | Colour | Meaning |
|---|---|---|
| 1 | Orange | 1st digit — 3 |
| 2 | Black | 2nd digit — 0 |
| 3 | Orange | Multiplier — ×1,000 |
| 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 | 110 µA | 363 µW | 1/8 W |
| 5 V | 167 µA | 833 µW | 1/8 W |
| 12 V | 400 µA | 4.8 mW | 1/8 W |
| 24 V | 800 µA | 19.2 mW | 1/8 W |
What you can actually get
Parts made
199
35th most of 1,465 values
In stock
15,282
across 7 of them
Cheapest at 100
$0.0008
each
Tolerances sold
±0.01% to ±5%
7 grades in all
Packages: 0805, 0402, 1206, 0603, 1210, 2512, 2010, 0201. Ratings: 30mW to 5W.
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
$0.14
$0.014 each · Cut Tape (CT) · minimum order 1
The reel price
$0.00127
each, but only from 100,000 pieces up
Sitting in stock
6,857,059
across 47 part numbers
Per piece, ten costs 11.0× the reel price. That gap is why a handful of resistors never costs what the headline price suggests.
Stocked in ±0.1% and ±0.5% and ±1% and ±5%, rated 1/20 W to 1/4 W.
Cheapest part you can buy ten of: RT0402FRE0730KL by YAGEO — 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
OrangeBlackBlackOrangeBrown
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 30 kΩ — which is why measuring beats reading when it matters.
- 28.7 kΩ28.413 kΩ–28.987 kΩ
- 29.4 kΩ29.106 kΩ–29.694 kΩ
- 30.1 kΩ29.799 kΩ–30.401 kΩ
- 30.9 kΩ30.591 kΩ–31.209 kΩ
- 31.6 kΩ31.284 kΩ–31.916 kΩ
- 33 kΩ31.35 kΩ–34.65 kΩ
If you do not have one
Standard values that land within 1% of 30 kΩ when combined.