How To Read Resistor Values

How To Read Resistor Values Electronic Tutorial Here is a five band 220 ohm resistor and its resistor color code. (image credit: tom's hardware) the first significant figure is red, and using the decoder, we can see that red has a value of 2. Many resistors have some of the color bands grouped closer together or grouped toward one end. hold the resistor with these grouped bands to your left. always read resistors from left to right. resistors never start with a metallic band on the left. if you have a resistor with a gold or silver band on one end, you have a 5% or 10% tolerance.

Resistors Thecoolbritselectronics Learn how to determine the resistance value, tolerance, and temperature coefficient of resistors based on their color codes. see examples of three , four , five , and six band resistors and how to use a multimeter to measure their resistance. Read the color bands from left to right. the colors on the first 2 or 3 bands correspond to numbers from 0 to 9, which represent the significant digits of the resistor's ohmic value. the last band gives the multiplier. for example, a resistor with brown, green and green bands is rated at 15 mega ohms (15,000,000 ohms). 1. identify the colors: note the color of each band from left to right. 2. decode the digits: match the colors to their corresponding digits using the color code chart. 3. calculate the resistance value: combine the digits obtained from the first two bands and multiply them by the multiplier indicated by the third band. Four of the bands tell you the nominal value. the fifth band tells you the tolerance. you can count on the actual resistance of a precision resistor being really close to its nominal value. so, if you buy a 100 omega precision resistor, chances are its actual value is within 1 or 2 of 100 omega. the following figure shows a diagram of the color.

How To Read Resistor Values Dummies 1. identify the colors: note the color of each band from left to right. 2. decode the digits: match the colors to their corresponding digits using the color code chart. 3. calculate the resistance value: combine the digits obtained from the first two bands and multiply them by the multiplier indicated by the third band. Four of the bands tell you the nominal value. the fifth band tells you the tolerance. you can count on the actual resistance of a precision resistor being really close to its nominal value. so, if you buy a 100 omega precision resistor, chances are its actual value is within 1 or 2 of 100 omega. the following figure shows a diagram of the color. Calculating resistor colour code values. the resistor colour code system is all well and good but we need to understand how to apply it in order to get the correct value of the resistor. the “left hand” or the most significant coloured band is the band which is nearest to a connecting lead with the colour coded bands being read from left to. E12 means that every decade (0.1 1.0, 1 10, 10 100, etc.) is divided in 12 steps on a logarithmic scale. the size of every step is equal to: 10(1 12) = 1.21 10 (1 12) = 1.21. thus, every value is 21% or 1.21 times higher than the previous value in the series, rounded to whole numbers. because of this, all resistors with a tolerance of 10% overlap.

Resistor Values How To Calculate And Understand It Calculating resistor colour code values. the resistor colour code system is all well and good but we need to understand how to apply it in order to get the correct value of the resistor. the “left hand” or the most significant coloured band is the band which is nearest to a connecting lead with the colour coded bands being read from left to. E12 means that every decade (0.1 1.0, 1 10, 10 100, etc.) is divided in 12 steps on a logarithmic scale. the size of every step is equal to: 10(1 12) = 1.21 10 (1 12) = 1.21. thus, every value is 21% or 1.21 times higher than the previous value in the series, rounded to whole numbers. because of this, all resistors with a tolerance of 10% overlap.

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