![]() ![]() ![]() You will find yourself referring to this chart frequently, as values needed to calculate the resistance value are compiled on this chart. Similar to how the periodic table is indispensable to a chemist, the Resistor Color Code Chart is your best friend when it comes to decoding a resistor’s code. Getting Started: Resistor Color Code Chartīefore getting to the math bit, you have to know about an important tool known as the Resistor Color Code Chart. Reading resistor color codes can become easy once you understand the math behind each colored band. We have put together a simple guide to explain the calculation behind resistor color codes. The colored bands are used to denote the resistance, tolerance and the temperature coefficient. Resistors can have 3 bands, 4 bands, 5 bands or 6 bands. Thus, instead of directly printing numbers onto the resistor, resistor color codes are used. Did you buy a pack of 500 resistors, only to be mortified to discover how clueless you are about those colorful rings on your new resistors? You wonder, why couldn’t they just print the resistance value on the resistor and make life easier for everyone? If reading resistor color codes sounds foreign to you, then read on! Can you tell which one is the 4.7 kΩ resistor?Īs resistors are small, it is pretty difficult to print numbers or the resistance value onto the small surface area of the resistor.
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