10k ohm resistor color code

How to read it

Brown is 1, black is 0 and orange is the multiplier ×1,000, so the value is 10 × 1,000 = 10,000 Ω, written 10 kΩ or 10K. The University of Texas at Dallas lab manual gives brown-black-orange as the code of the 10K resistors in its parts kit. The University of Colorado Colorado Springs physics prelab calls 10 kΩ probably the most commonly used resistor in circuits, next to 1 kΩ and 100 kΩ.

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On a five-band resistor

With three digit bands the same value is brown, black, black, red: 100 × 100. The fifth band is the tolerance, brown for ±1%, and a sixth band would add the temperature coefficient.

On a chip resistor

A 10 kΩ surface mount resistor is printed 103 (10 and three zeros) or, with four digits on 1% parts, 1002; Vishay’s chip marking table gives both, and Yageo’s marking specification works 1002 as 100 × 10² = 10 kΩ. On a 1% chip of the 0603 size the EIA-96 code is 01C: 100 × 100. See SMD resistor codes.

Look-alikes

With a red third band instead of orange the value is ten times lower, 1 kΩ; with yellow, ten times higher, 100 kΩ.