27 Ohm Resistor Color Code: red, violet, black, gold

27 ohm resistor color code

The color code for 27 Ω is red, violet, black, gold on a 4-band resistor (±5%) and red, violet, black, gold, brown on a 5-band resistor (±1%).

Color bands

4 bands, ±5%Red, Violet, Black, Gold

5 bands, ±1%Red, Violet, Black, Gold, Brown

6 bands, ±1%, 100 ppm/KRed, Violet, Black, Gold, Brown, Brown

Open 27 Ω in the color code calculator →

Actual value by tolerance

Tolerance	Band	Minimum	Maximum
±1%	Brown	26.73 Ω	27.27 Ω
±2%	Red	26.46 Ω	27.54 Ω
±5%	Gold	25.65 Ω	28.35 Ω
±10%	Silver	24.3 Ω	29.7 Ω

SMD and printed codes

SMD, 3 digits	`270`
SMD, 4 digits	`27R0`
SMD, EIA-96	not used for this value
Letter code (IEC 60062)	`27R`

Current and power at common voltages

Voltage	Current	Power	Resistor rating
3.3 V	122 mA	403 mW	1 W
5 V	185 mA	926 mW	2 W
9 V	333 mA	3 W	10 W
12 V	444 mA	5.33 W	over 10 W
24 V	889 mA	21.3 W	over 10 W

As an LED resistor

Current through one LED in series with 27 Ω:

Supply	Red LED (2.0 V)	White or blue LED (3.2 V)
3.3 V	48.1 mA	3.7 mA
5 V	111 mA	66.7 mA
12 V	370 mA	326 mA

Above 20 mA: too much for a common 5 mm LED.

LED Resistor Calculator →

Standard series

27 Ω is a standard value in the E12, E24 series, so it comes in almost every resistor kit.

Nearby values

← 22 Ω 33 Ω →

Same first two colors, different multiplier:

2.7 Ω 270 Ω 2.7 kΩ 27 kΩ 270 kΩ 2.7 MΩ

Frequently asked questions

What are the colors of a 27 Ω resistor?

On a 4-band resistor: red, violet, black, gold. On a 5-band resistor: red, violet, black, gold, brown.

What is the SMD code for 27 Ω?

270 on 3-digit resistors and 27R0 on 4-digit (1%) resistors.

How much current flows through a 27 Ω resistor at 5 V?

185 mA, dissipating 926 mW. A 2 W resistor is enough.

Which resistors get mixed up with 27 Ω?

red, violet, gold, gold is 2.7 Ω and red, violet, brown, gold is 270 Ω: only the third band changes, so check it carefully.