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Resistors - Standard Values

Preferred number series for resistors.

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Preferred number series for resistors according IEC 60063 are indicated below.

Electrical resistor

Resistors with 20% tolerance

Resistors - Standard color codes

Download and print Resistors - Standard Colors Codes table

Resistors with 10% tolerance

Resistors with 10% tolerance
ohmkohm
10 100 1 10 100 ..
12 120 1.2 12 120 ..
15 150 1.5 15 150 ..
18 180 1.8 18 180 ..
22 220 2.2 22 220 ..
27 270 2.7 27 270 ..
33 330 3.3 33 330 ..
39 390 3.9 39 390 ..
47 470 4.7 47 470 ..
56 560 5.6 56 560 ..
68 680 6.8 68 680 ..
82 820 8.2 82 820 ..

ohm's law

Equivalent Expressions of Ohm's Law

Ohm's law (1) can also be expressed as

U = R I                         (2)

or 

R = U / I                       (3)

ohms law - voltage, resistance and current diagram

Download and print the Ohm's Law diagram!

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