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Resistor Colour Coding
Sheet resistors often have the following colour coding
1st colour ring
2nd colour ring
3rd colour ring
4th colour ring
Resistance value:
brown
red
orange
yellow
green
blue
purple
grey
white
black
brown
red
orange
yellow
green
blue
purple
grey
white
silver
gold
black
brown
red
orange
yellow
green
blue
brown
red
gold
silver
-
Ohm
Tolerance
© Lautsprechershop Daniel Gattig GmbH, 2004. All rights reserved - Warranty excluded
Please note: there are also precision multipliers with 5 colour codes, whereby 4 of them indicate the value.
When two resistors R1 and R2 are in parallel, then R
ges
= (R1 * R2) / (R1 + R2)
Resistors in parallel
Please enter decimal separators as "."
R1 =
Ohm
and
R2 =
Ohm
R
ges
=
Ohm
© Lautsprechershop Daniel Gattig GmbH, 2002. All rights reserved - Warranty excluded
When two resistors R1 and R2 are in series, then their resistance values are added up.
Resistors in series
Please enter decimal separators as "."
R1 =
Ohm
and
R2 =
Ohm
R
ges
=
Ohm
© Lautsprechershop Daniel Gattig GmbH, 2002. All rights reserved - Warranty excluded
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