20k ohm resistor color code

The color code for 20 kΩ is red, black, orange, gold on a 4-band resistor (±5%) and red, black, black, red, brown on a 5-band resistor (±1%).

Color bands

4 bands, ±5%Red, Black, Orange, Gold

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

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

Tolerance	Band	Minimum	Maximum
±1%	Brown	19.8 kΩ	20.2 kΩ
±2%	Red	19.6 kΩ	20.4 kΩ
±5%	Gold	19 kΩ	21 kΩ
±10%	Silver	18 kΩ	22 kΩ

Voltage	Current	Power	Resistor rating
3.3 V	165 µA	545 µW	1/8 W
5 V	250 µA	1.25 mW	1/8 W
9 V	450 µA	4.05 mW	1/8 W
12 V	600 µA	7.2 mW	1/8 W
24 V	1.2 mA	28.8 mW	1/8 W

Current through one LED in series with 20 kΩ:

20 kΩ is a standard value in the E24, E96 series. Check the tolerance and power rating of the actual component.

Same first two colors, different multiplier:

What are the colors of a 20 kΩ resistor?

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

What is the SMD code for 20 kΩ?

203 on 3-digit resistors and 2002 on 4-digit (1%) resistors.

How much current flows through a 20 kΩ resistor at 5 V?

250 µA, dissipating 1.25 mW. A 1/8 W resistor is enough.

Which resistors get mixed up with 20 kΩ?

red, black, red, gold is 2 kΩ and red, black, yellow, gold is 200 kΩ: only the third band changes, so check it carefully.