How to read the resistance value of the color ring resistance, how to read the color ring resistance

You will know that the color ring resistance generally has four rings and five rings, the first two rings of the four rings represent the number, the third ring represents the number of 0, and the fourth ring is generally silver and gold, silver means an error of 10%, and gold is 5%. The five rings are the same, the first three represent ten white, the fourth represents the number of 0, and the five rings indicate that the error is silver and gold. I forgot how much the specific color represents.

Here's the reading, anyway. Brown seems to indicate 1

In order to read the resistance value of the color ring resistance, we must first know the calculation method of the resistance value and error of the color ring resistance, and also distinguish between the four-color ring resistance and the five-color ring resistance

It is calculated as:

1. Color marking method: use different colored bands or dots to mark the nominal resistance value and allowable deviation on the surface of the resistor. The meaning of each color:

1. The color represents the meaning of resistance: black-0, brown-1, red-2, orange-3, yellow-4, green-5, blue-6, purple-7, gray-8, white-9.

2. The color represents the meaning of the multiplier: black-1, brown-10, red-100, orange-1000, yellow-10000, green-100000, blue-1000000, purple-10000000, gray-100000000, white-1000000000, gold and silver.

3. The four-color ring resistance color represents the significance of the error: gold - 5%, silver - 10%.

4. The five-color ring resistor color represents the significance of the error: brown - 1%, red - 2%, green - blue - purple - gray - .

Second, the four-color ring resistance representation method:

1. 1. The two-color ring directly represents its number;

2. The third ring represents the multiplier;

3. The fourth ring indicates the error.

3. Representation of five-color ring resistance:

1. One, two, and three color rings directly represent their numbers;

2. The fourth ring represents the multiplier;

3. The fifth ring indicates the error.

4. For example: 1. Four color rings: brown, red, orange, gold; The resistance value is: 12000 = 12k with an error of 5%;

2. Five-color ring: brown, red, orange, yellow, brown; The resistance value is: 1230000 = 1230k = error of 1%;

3. Five-color ring: brown, red, green, gold, brown; The resistance value is: error of 1%;

1. Four-color ring reading method:

First color wheel: the first significant digit;

Second color wheel: second significant number;

The third color wheel: indicates the magnification;

The fourth color wheel: indicates error, that is, accuracy;

2. Five-color ring reading method:

First color wheel: the first significant digit;

Second color wheel: second significant number;

3rd color wheel: 3rd significant digit;

The fourth color wheel: indicates magnification;

The fifth color wheel: indicates error, that is, accuracy.

The color ring resistor is a color ring painted on the resistor package (i.e., the surface of the resistor) to represent the resistance value of the resistor.

Color Ring Resistance The most common are 4 color ring resistors and 5 color ring resistors.

1) Four-color ring resistor.

Four-color ring resistance refers to the resistance value expressed by four color rings, counting from left to right, as shown in the figure. The first color ring represents the maximum digit of the resistance; The second color ring represents the second digit of the resistance; The third color ring represents the number of resistance multiplications; The fourth color ring indicates the allowable deviation (accuracy) of the resistance value.

For example, if the first ring of a resistor is red (for 2), the second ring is purple (for 7), the third ring is brown (for 10 times), and the fourth ring is gold (for 5%), then the resistance of this resistor should be 270, and the error range of the resistance value is 5%.

2) Five-color ring resistor.

Five-color ring resistance refers to the resistance value expressed by five color rings, counting from left to right, as shown in the figure. The first color ring represents the maximum digit of the resistance; The second color ring represents the second digit of the resistance; The third color ring represents the third digit of the resistance; The fourth color ring represents the multiplier of the resistance; The fifth color ring indicates the margin of error.

The color ring resistance identification method means that four color rings or five color rings or six color rings are used on the resistor to represent the resistance value.

Color Ring Resistance Identification Method First of all, from the bottom end of the resistor, find out the color ring representing the tolerance accuracy, gold represents 5%, silver represents 10%. Then from the other end of the resistor, find the first and second color rings, read their corresponding numbers, the first two color rings are red, so the corresponding numbers are red 2, red 2, and its significant number is 22. Then read the third multiple, black.

1. The color ring resistance is divided into five rings and four rings, there are four colors for the four-ring resistance, and five colors are marked on the resistor body for the five-ring resistance.

2. First of all, we have to know which is the first number, there are five colors, so it is the five rings, we have to read according to the ** of the five rings, and then we have to know which is the first color ring, let's see the difference, one side of the four colors is close to each other, and the other color ring is farther away, so we know from left to right, the first color is yellow, purple, black, orange, brown.

3. For example, yellow is 4 in the first ring, purple in the second ring is 7, black in the third ring is 0, the fourth ring is the product of 10 to the third power, that is, 1000, the fifth ring is the error brown is 1%, now we calculate what the resistance is 470 * 10000 = 4700k, and then the error is 1%, so the range of resistance is normal between the resistance values.

k is red, black and orange (silver 10%, gold 5%, colorless 20%), 470 is yellow, purple and brown (silver 10%, gold 5%, colorless 20%);

2. The color ring resistance is to coat the resistor package (i.e., the surface of the resistor) with a certain color color of the color ring to represent the resistance value of the resistor;

3. Identification method:

Color: Black, Brown, Red, Orange, Yellow, Green, Blue, Purple, Gray, White, Gold, Silver.

The penultimate ring represents the number of zeros. The last digit of the color ring resistor indicates the error.

There is a clever mantra for this law: brown, red, and two orange are three, four yellow, five green, six are blue, seven purple, eight gray, and nine are white, black is zero, and gold, five, silver, and ten table errors are correct.

For example, red, yellow, brown, and gold represent 240 euros.

The color ring resistor is divided into four rings and five rings, and four rings are usually used.

The penultimate ring can be gold (for and silver (for , and the last ring error can be colorless (20%).

The five-ring resistance is a precision resistance, the first three rings are numerical values, and the last ring is an error color ring, usually gold, silver and brown three colors, the error of gold is 5%, the error of silver is 10%, the error of brown is 1%, the error of colorless is 20%, and occasionally there is an error represented by green, and the error of green is. Precision resistors are commonly used in military, aerospace, etc.

The color wheel was actually an early standard to help people distinguish between different resistance values. Now it is still widely used, such as household appliances, electronic instruments, electronic equipment can often be seen.

However, due to the relatively large resistance of the color ring, it is not suitable for the performance requirements of modern highly integrated.

Brown 1 red 2 orange 3 yellow 4 green 5 blue 6 purple 7 gray 8 white 9 black 0, gold and silver indicate error.

The color ring resistance is divided into four color rings and five color rings, and each color ring represents the following meanings:

1. The first color ring: the first digit of the resistance.

2. The second color ring: the second digit of the resistance value.

3. The third color ring: power of 10.

4. The fourth color ring: error representation, for example, resistance color ring: brown, green, red and gold, the first bit is 1, the second digit is 5, the third digit is 10 The power is 2 (i.e. 100), and the error is 5%, that is, the resistance value is 15 100 = 1500 euros = thousand ohms =.

Detection and identification method of color ring resistance.

Find out the error color ring, usually gold, silver, brown, so generally as long as there is a gold ring and a silver ring on the resistor, you can basically determine that this is the last link of the color ring resistance.

Each color on the color ring resistor represents the corresponding resistance magnitude, where white is the largest and black is the smallest.

Keeping in mind the error represented by the color of the fourth ring, it is easy to calculate, i.e. 5% for gold, 10% for silver, and 20% for colorless.

The above content refers to Encyclopedia - Color Ring Resistors.