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1 Resistor color code. 2 Easy to remember. 3 Canada. 4 India. 5 UK. 6 Dutch. 7 Vacuum tube era. 8 Offensive/outdated. 9 References. Toggle the table of contents. List ...
A 2.26 kΩ, 1%-precision resistor with 5 color bands (), from top, 2-2-6-1-1; the last two brown bands indicate the multiplier (×10) and the tolerance (1%).. An electronic color code or electronic colour code (see spelling differences) is used to indicate the values or ratings of electronic components, usually for resistors, but also for capacitors, inductors, diodes and others.
An axial-lead through-hole zero-ohm resistor is generally marked with a single black band, [6] the symbol for "0" in the resistor color code. Surface-mount zero-ohm resistors are usually marked with a single or multiple "0" (if size allows marking), where the number of digits can indicate the tolerance or maximum resistance rating, as is the ...
For example, a 10 ohm resistor connected in parallel with a 5 ohm resistor and a 15 ohm resistor produces 1 / 1/10 + 1/5 + 1/15 ohms of resistance, or 30 / 11 = 2.727 ohms. A resistor network that is a combination of parallel and series connections can be broken up into smaller parts that are either one or the other.
I have come across a 5-band resistor with the following color code: red-violet-gold-gold-yellow. The value of this resistor is marked 2.7 ohms in my schematic. I understand if there is a gold 4th band in a 5-band resistor, but a 3rd and 4th gold band? It is an older resisor, so the yellow 5th band is likely a TempCo of 25 ppm.
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A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages , bias active elements, and terminate transmission lines , among other uses.
The code letters are loosely related to the corresponding SI prefix, but there are several exceptions, where the capitalization differs or alternative letters are used. For example, 8K2 indicates a resistor value of 8.2 kΩ. Additional zeros imply tighter tolerance, for example 15M0.