4.3 Ω resistor colour code
Four bands: Yellow · Orange · Gold · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
4.3 Ω
4.3 ohms
Real range at ±5%
4.085 Ω – 4.515 Ω
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 | Gold | Multiplier — ×0.1 |
| 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 | 767 mA | 2.53 W | no standard part — needs a power resistor or a heatsink |
| 5 V | 1.16 A | 5.81 W | no standard part — needs a power resistor or a heatsink |
| 12 V | 2.79 A | 33.5 W | no standard part — needs a power resistor or a heatsink |
| 24 V | 5.58 A | 134 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
107
166th most of 1,465 values
In stock
5,340
across 3 of them
Cheapest at 100
$0.0011
each
Tolerances sold
±0.1% to ±5%
5 grades in all
Packages: 0603, 1206, 0805, 1210, 2512, 0402, 0207, 0204. Ratings: 50mW 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
$0.30
$0.030 each · Cut Tape (CT) · minimum order 1
The reel price
$0.00412
each, but only from 50,000 pieces up
Sitting in stock
83,849
across 1 part numbers
Per piece, ten costs 7.3× the reel price. That gap is why a handful of resistors never costs what the headline price suggests.
Stocked in ±1%, rated 1/8 W.
Cheapest part you can buy ten of: RK73H1JTTD4R30F by KOA Speer 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
YellowOrangeBlackGoldBrown
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 4.3 Ω — which is why measuring beats reading when it matters.
- 3.9 Ω3.705 Ω–4.095 Ω
- 4.12 Ω4.0788 Ω–4.1612 Ω
- 4.22 Ω4.1778 Ω–4.2622 Ω
- 4.32 Ω4.2768 Ω–4.3632 Ω
- 4.42 Ω4.3758 Ω–4.4642 Ω
- 4.53 Ω4.4847 Ω–4.5753 Ω
- 4.7 Ω4.465 Ω–4.935 Ω
If you do not have one
Standard values that land within 1% of 4.3 Ω when combined.