300 kΩ resistor colour code
Four bands: Orange · Black · Yellow · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
300 kΩ
300,000 ohms
Real range at ±5%
285 kΩ – 315 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 | Yellow | Multiplier — ×10,000 |
| 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 | 11 µA | 36.3 µW | 1/8 W |
| 5 V | 16.7 µA | 83.3 µW | 1/8 W |
| 12 V | 40 µA | 480 µW | 1/8 W |
| 24 V | 80 µA | 1.92 mW | 1/8 W |
What you can actually get
Parts made
196
40th most of 1,465 values
In stock
8,435
across 4 of them
Cheapest at 100
$0.0017
each
Tolerances sold
±0.1% to ±5%
7 grades in all
Packages: 0805, 1206, 0603, 0402, 1210, 2512, 2010, 0207. Ratings: 50mW to 11W.
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
$0.21
$0.021 each · Digi-Reel® · minimum order 1
The reel price
$0.00185
each, but only from 500,000 pieces up
Sitting in stock
1,779,439
across 11 part numbers
Per piece, ten costs 11.4× 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: RMCF0603FT300K by Stackpole Electronics 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
Five bands
OrangeBlackBlackYellowBrown
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 300 kΩ — which is why measuring beats reading when it matters.
- 287 kΩ284.13 kΩ–289.87 kΩ
- 294 kΩ291.06 kΩ–296.94 kΩ
- 301 kΩ297.99 kΩ–304.01 kΩ
- 309 kΩ305.91 kΩ–312.09 kΩ
- 316 kΩ312.84 kΩ–319.16 kΩ
- 330 kΩ313.5 kΩ–346.5 kΩ
If you do not have one
Standard values that land within 1% of 300 kΩ when combined.