43 kΩ resistor colour code
Four bands: Yellow · Orange · Orange · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
43 kΩ
43,000 ohms
Real range at ±5%
40.85 kΩ – 45.15 kΩ
A gold band allows this much drift.
Series
E24
E24 only — stocked less often.
Band by band
| Band | Colour | Meaning |
|---|---|---|
| 1 | Yellow | 1st digit — 4 |
| 2 | Orange | 2nd digit — 3 |
| 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 | 76.7 µA | 253 µW | 1/8 W |
| 5 V | 116 µA | 581 µW | 1/8 W |
| 12 V | 279 µA | 3.35 mW | 1/8 W |
| 24 V | 558 µA | 13.4 mW | 1/8 W |
What you can actually get
Parts made
173
95th most of 1,465 values
In stock
0
across 0 of them
Cheapest at 100
$0.0066
each
Tolerances sold
±0.05% to ±5%
7 grades in all
Packages: 0805, 1206, 0603, 0402, 1210, 2512, 2010, 0201. Ratings: 30mW to 3W.
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
$0.13
$0.013 each · Cut Tape (CT) · minimum order 1
The reel price
$0.00176
each, but only from 100,000 pieces up
Sitting in stock
2,428,719
across 50 part numbers
Per piece, ten costs 7.4× 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 0.21 W.
Cheapest part you can buy ten of: RT0603FRE0743KL 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
YellowOrangeBlackRedBrown
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 43 kΩ — which is why measuring beats reading when it matters.
- 39 kΩ37.05 kΩ–40.95 kΩ
- 41.2 kΩ40.788 kΩ–41.612 kΩ
- 42.2 kΩ41.778 kΩ–42.622 kΩ
- 43.2 kΩ42.768 kΩ–43.632 kΩ
- 44.2 kΩ43.758 kΩ–44.642 kΩ
- 45.3 kΩ44.847 kΩ–45.753 kΩ
- 47 kΩ44.65 kΩ–49.35 kΩ
If you do not have one
Standard values that land within 1% of 43 kΩ when combined.