7.5 Ω resistor colour code
Four bands: Violet · Green · Gold · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
7.5 Ω
7.5 ohms
Real range at ±5%
7.125 Ω – 7.875 Ω
A gold band allows this much drift.
Series
E24
E24 only — stocked less often.
Band by band
| Band | Colour | Meaning |
|---|---|---|
| 1 | Violet | 1st digit — 7 |
| 2 | Green | 2nd digit — 5 |
| 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 | 440 mA | 1.45 W | 5 W |
| 5 V | 667 mA | 3.33 W | no standard part — needs a power resistor or a heatsink |
| 12 V | 1.6 A | 19.2 W | no standard part — needs a power resistor or a heatsink |
| 24 V | 3.2 A | 76.8 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
134
127th most of 1,465 values
In stock
3,790
across 4 of them
Cheapest at 100
$0.0058
each
Tolerances sold
±0.05% to ±5%
7 grades in all
Packages: 0805, 1206, 0603, 1210, 2512, 0402, 2010, 1225. Ratings: 30mW to 100W.
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
$29.45
$2.94 each · Tube · minimum order 1
The reel price
$2.22
each, but only from 1,000 pieces up
Sitting in stock
2,325
across 1 part numbers
Stocked in ±1%, rated 35 W.
Cheapest part you can buy ten of: PWR263S-35-7R50F by Bourns 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
VioletGreenBlackGoldBrown
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 7.5 Ω — which is why measuring beats reading when it matters.
- 6.8 Ω6.46 Ω–7.14 Ω
- 7.15 Ω7.0785 Ω–7.2215 Ω
- 7.32 Ω7.2468 Ω–7.3932 Ω
- 7.68 Ω7.6032 Ω–7.7568 Ω
- 7.87 Ω7.7913 Ω–7.9487 Ω
- 8.2 Ω7.79 Ω–8.61 Ω
If you do not have one
Standard values that land within 1% of 7.5 Ω when combined.