How do you read a 5 band resistor code?
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 resistor. Position the resistor with this band on the right side and again read your resistor from left to right.
For what reason would we need to use a 5 band resistor?
So I understand that a 5 band resistor allows you to display the resistance to a higher number of significant levels.
Why do some resistors have 5 bands?
The 5th color band on the right side represent the tolerance of the resistor and the 6th color band represents the TCR (Temperature Co-efficient of Resistance). The 1st color band indicates the 1st significant value of the resistors value. The 2nd color band indicates the 2nd significant value of the resistors value.
What is the fifth color band on a resistor?
Resistors with high precision have an extra band to indicate a third significant digit. Therefore, the first three bands indicate the significant digits, the fourth band is the multiplication factor, and the fifth band represents the tolerance.
What are the bands of a 5 band resistor?
For the 5 band resistor: Band 1 – First significant digit. The first 4 bands make up the resistance nominal value. The first 3 bands make up the significant digits where: The fifth band is the tolerance and represents the worst case variation one might expect from the nominal value.
How is the color code of a resistor calculated?
Just have a look to the resistor color code chart below and see the calculations, how the resistance value is calculated according to this chart. ‘ a’ represents the 1 st significant digit, which is the first band color of resistor. ‘ b’ represents the 2 nd significant digit, which is the second band color of resistor.
How do you find the resistance of a resistor?
The numerical value of their resistance is indicated by a colour code which consists of bands of different colors printed on the body of the resistor.The color used in this code and the digits represented by them are given in table below: Usually the code consists of four bands.Starting from left to right.