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Electronic resistors are usually distinguished by which markings?



  Electrical resistors showing the various identification bands
AFrank99 / Wikimedia

Answer: Colored ribbons

If you've ever looked closely at the resistors on the inside of many of your home electronics, you may have their tiny ones doing so Stripes noticed. These ribbons, which are officially referred to as Electronic Color Code, indicate the resistance value of the resistor.

The system was developed in the 1

920s by the Radio Manufacturers Association (now known as the Electronic Industries Alliance) to help distinguish the values ​​between otherwise often indistinguishable resistances. The color and order of the bands on a standard four-band resistor serve to give significant values ​​of the resistance value (the first two bands) as well as the decimal multiplier (the third band) and the tolerance of the resistor (the fourth band). For a layman, the tape system seems quite mysterious, but for an experienced professional or serious hobbyist, the tape system is second nature.

This system of color-coded tapes has been prevalent for almost a century (and is likely to do so for non-surface mount resistors), and the advent of small surface mount resistances, often barely larger than a grain of rice, has led to an increase in alphanumeric coding instead of banding led method.


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