The color code of the common resistors

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How To Read Resistor Color

The color in the resistor contains most of the information about a resistance, which contains the resistance value, the tolerance, multiplier，or even the temperature coefficient, and each color represents a number, and each number is part of the parameter. When we know this, don't rush to understand, we find that the number of rings above the color ring resistance is different, some more and some less, the fact is very simple, usually there are three types of labeling 4 band  5band  6 band，So we just need to figure out what the two things left behind is the simplest part.

•  Different colors represent different numerical values:As shown in the resistor color code chart， there are some ways on the Internet to make people remember that these colors represent the numbers above, but in fact, you don't need to waste this idea. We just need to put it into a resistance control table, and practice a few times, so you can easily find out your resistance parameters.

•  Three kinds of:It is divided into 4 5 6  Band four color ring resistance, 4band Resistor is usually a more ordinary resistance, 5band Resistor is mostly highly precision, and 6bandResistor. To facilitate your understanding, we should explain from the last ring, which is usually tolerance, and the penultimate one is multiplier.

Next, we can identify it by using the control map. Start with 4 BAND: brown is 1, black is 0 orange is 3, it means 10 of 10 ³ = 10000 ohm here we get the basic unit OHM, the basic unit of color ring resistance is: ohm (Ω), thousand euro (KΩ), million euro (M Ω).1000 euro (Ω) =1 thousand euro (KΩ), 1000 thousand euro (KΩ) =1 trillion euro (MΩ) can be converted to 10K once, so that we get the resistance value, then the last ring is gold corresponding to 5% tolerance

•  Next, we can identify it by using the resistor color code chart.

•  Start with 4 BAND: brown is 1 black is 0 orange is 3 it means is 10 ³ = 10000 ohm here we get the basic unit OHM, the basic unit of  resistance is: ohm (Ω), thousand ohm (KΩ), trillion ohm (M Ω).

•  1000 ohm (Ω) =1 kiloOhm (KΩ), 1000 kiloOhm (KΩ) =1 megohm (MΩ)， can be converted to 10K once, so that we get the resistance value, then the last ring is gold tolerance corresponding to 5%.

When you identify a 4band, you can try to identify a 5band to enhance your recognition ability, The first line of 5 BAND in the （resistor color code chart ）is yellow =4   purple =7  green = 5    red corresponds to the quadratic of multiplier 10^2=100， to get 475 * 100=47500 Ω / 1000=47.5k， last band is orange 1% to identify its model is 47. 5K 1% ，then 6band part of the color band with 4band 5band is that it has a band temperature coefficient, The temperature coefficient in this chart is brown, that is 100ppm, If you can learn anything further Temperature Coefficient of Resistance - Meaning, It is also a very important step for our understanding of resistance tracking in design selection.

What is a Resistor?

Resistor is a current limiting element, is an electronic component that regulates or limits the current flow, it can limit the current through the branch it connects. Simply put, it is like a thin shunt pipe, which can adjust the size of the control current.also you can lern how does a resistor work,can help you can have a deeper understanding of it.

Read Resistor Color note

When we calculate our resistance color code, some people may confuse the last two band, tolerance and multiplier or temperature coefficient appear, the error identified it as multiplier, if you don't want to cause trouble, you can also use our resistor color code calculator tool you can identify your resistors more effortless.

Full series of resistance value table

Types of resistor

•  The types of resistors are respectively:Linear resistance, fixed resistors, carbon component resistors, wire wound resistors, film resistance, carbon film resistors, metal film resistors, thick film resistors.

•  Although there are all kinds of resistances, but there are two kinds of resistances: linear and fixed, so what is the difference between linear resistor and fixed resistor? What are the differences between the different resistances? If the use of resistance needs to master more detailed words, you need to understand these, otherwise you only need to understand the mainstream resistor has its use.

•  Ordinary resistance is one of the most basic resistors, which limits the current and reduces the pressure by generating the resistance in the circuit. The choice of ordinary resistance materials is very rich, common carbon film resistance, film resistance, metal film resistance, etc., these resistance types are widely used, widely used in communication, digital, power supply and other industrial fields.

•  Compared with the ordinary resistance, the adjustable resistance can realize the adjustment of the resistance value, which is used to control the voltage and current of the circuit, and realize the control and debugging of the interconnected circuit. The types of adjustable resistance include variable resistance, mutation resistance and retaining resistance, applied to control and measurement systems in medical, automotive and aerospace fields.

•  Heat dissipation resistance is one of the resistors widely used resistors in recent years. By improving the heat dissipation ability of the resistance body, it realizes the distribution and control of heat and ensures the normal work of the resistance current. The types of heat dissipation resistance include metal film heat dissipation resistance, aluminum shell resistance, porcelain heat dissipation resistance, etc., which are widely used in LED lighting, high power transmission and other fields.

•  Resistance as one of the basic electronic components, it is a necessity of technology products, so its use is everywhere, everywhere in every corner of our life and work.

Resistor symbol

•  Familiarity with the shape of the resistance can not only help us to draw the circuit diagram more efficiently, but also help us to have a deeper understanding of the resistor, of course, this is just the beginning, for any designer, to understand Electrical and Electronics Symbols and Meanings, is the systematic knowledge of assisting the work.

•  Here contains resistor with capacitor common symbol, resistors, usually abbreviated as "R", in addition to all kinds of resistor symbol it also has a different identification, read them in the circuit, such as: fixed resistor usually with the most simple resistance form symbol, symbol at the ends of the resistance connection pin, very intuitive to understand.

•  The symbol of the variable resistor then uses an arrow to mark its adjustable meaning.

•  Once you understand the imagination of each symbol designer, you can easily write down these symbols, which may need a more detailed resistor symbol to get a more comprehensive understanding of these.

Standard EIA Decade Resistor Values

•  The International Electrotechnical Commission (IEC) was published in 1952 as the international standard, namely the resistance E series resistance value. E indicates the exponential spacing, a sequence consisting of a geometric series.

•  The nominal resistance value of the resistance is divided into six series, E6, E12, E24, E48, E96 and E192, which are applicable to the resistors with allowable deviation of 20%, ± 10%, ± 5%, ± 2%, ± 1% and ± 0.5%, respectively.Among them, E24 series is commonly used series, E48, E96 and E192 series are high precision resistance series.

•  Nominal resistance value of E6 series resistance, corresponding to the allowable deviation of ± 20%, view the E6 series resistance control table.

•  Nominal resistance value of E12 series resistance, corresponding to the allowable deviation of ± 10%, view the E12 series resistance control table.

•  Nominal resistance value of E24 series resistance, corresponding to the allowable deviation of ± 5%, view the E24 series resistance control table.

•  Nominal resistance value of E48 series resistance, corresponding to the allowable deviation of ± 2%, view the E48 series resistance control table.

•  Nominal resistance value of E96 series resistance, corresponding to the allowable deviation of ± 1%, view the E96 series resistance control table.

•  Nominal resistance value of E192 series resistance, corresponding to the allowable deviation of ± 0.5%, ± 0.25%, ± 0. 1%. See the specification table of E192 series resistance.

From these, we can see that the biggest difference between different series is the allowed deviation. As we all know, the lower the deviation, the higher the resistance value, and E192 is the lowest deviation. The larger the deviation, the less the resistance value, it can be understood that, because the range of the deviation occupies a lot of resistance value space, so the lower the deviation can choose the more resistance value.

In routine applications, most of the selection allowed bias is E24 ± 5% which is commonly used. Model also roughly these.

The color code of the common resistors