Color Ring Resistor Calculator

The official version of the Color Ring Resistance Calculator is a compact and practical resistance calculation tool. The color ring resistance calculator is simple to operate, the user only needs to enter the required value, select the best combination found with the standard resistance range color ring calculator, and quickly calculate the design error for the required value. The latest version of the color ring resistance calculator is easy to calculate and has accurate results, providing convenience to users.

Features of color circle resistance calculator software

​ 1. The software is small in size, only 7k

2. Green version, you can download it and use it

3. Easy to use, just input the corresponding value to calculate the resistance.

4. Supports calculation of four-ring and five-ring color rings

Color ring resistance calculator calculation method

Calculation of four-color ring resistance:

Brown 1 Red 2 Orange 3 Yellow 4 Green 5 Blue 6 Purple 7 Gray 8 White 9 Black 0 Gold and silver indicate errors (gold is 5% error, silver is 10% error)

The meanings of each color ring are as follows:

The first color ring: the first digit of the resistance value;

The second color ring: the second digit of the resistance value;

The third color wheel: powers of 10;

The fourth color circle: error indication.

For example: Resistor color ring: brown, green, red and gold, the first digit is 1; the second digit is 5; the power of 10 in the third digit is 2 (i.e. 100); the error is 5%; that is, the resistance value is: 15 &TImes; 100 = 1500 ohms = 1.5 kiloohms = 1.5K

Calculation of five-color ring resistance:

There are also more accurate "five-color ring" resistors, which use five color rings to represent the resistance of the resistor, as follows:

The first color ring: the first digit of the resistance value;

The second color ring: the second digit of the resistance value;

The third color ring: the third digit of the resistance value;

The fourth color ring: the power of 10 of the resistance multiplier;

The fifth color wheel: error (commonly brown, the error is 1%)

Some five-color ring resistors have color rings on the metal caps at both ends. The color ring far away from the relatively concentrated four color rings represents the error. It is the fifth color ring, and the corresponding metal cap on the other end is the first color. ring.

When reading, start from it. The second and third color rings after that are the second highest and the second highest. The fourth ring represents the power of 10.

For example:

The order of the resistance of a certain resistor color ring is: red (2) - black (0) - black (0) - black - brown, then it means that the resistance value of the resistor is: 200 &TImes; 10 (0th power) Ω.

            Another example, brown-black-black-red-brown, means that the resistance value of the resistor is: 100 &TImes; 10 (2nd power)Ω = 10000Ω = 10KΩ.

It can be seen that the resistance error of the four-color ring is 5-10%, and the error of the five-color ring is usually 1%, which improves the accuracy.

For example: there is a resistor yellow, purple, red, orange and brown. The first three digits are 472, and the fourth digit represents 10 to the third power, which is 1000; the resistance value is: 472&TImes;1000 ohms = 472 kiloohms, that is, 472KΩ.

Recognize the color ring resistance reading sequence:

In practice, we found that the arrangement order of some color ring resistors is not very clear, and it is often easy to read them incorrectly. The following techniques can be used to make judgments during identification. The specific contents are as follows:

Tip 1: First find the color circle that marks the error, and then arrange the order of the color circles. The most commonly used colors to indicate resistance errors are: gold, silver, and brown, especially gold rings and silver rings. Generally, they are rarely used as the first ring of the resistor color ring, so as long as there are gold rings and silver rings on the resistor, It can be basically determined that this is the last link of the color ring resistor.

Tip 2: Determine whether the brown ring is an error sign. The brown ring is often used as both an error ring and a significant figure ring. They often appear in the first and last links at the same time, making it difficult to identify who is the first link. In practice it can Distinguish according to the intervals between color circles. For example, for a resistor with five color rings, the distance between the fifth ring and the fourth ring is wider than the distance between the first ring and the second ring. Based on this, the arrangement order of the color rings can be determined.

Tip 3: When the color ring sequence cannot be determined by the color ring spacing alone, the production sequence value of the resistor can also be used to judge. For example, the color ring reading sequence of a resistor is: brown, black, black, yellow, brown, and its value is 100×104Ω=1MΩ. The error is 1%. It belongs to the normal resistance series value; if it is read in reverse order: brown, yellow, black, black, brown, the value is 140×100Ω=140Ω, and the error is 1%. Obviously, the resistance value read according to the latter order is not available in the production series of resistors, so the latter color circle order is incorrect.

Color ring resistance calculator installation steps

​ 1. Download the installation package of the official version of the Color Ring Resistance Calculator from Huajun Software Park

​​ 2. After downloading, unzip the compressed package into a folder named after this software

3. Open the folder and double-click the "exe" program

​ 4. The color ring resistance calculator is green software and can be used without installation.

Color Ring Resistance Calculator Update Log

​​ 1.Fix several bugs;

​​ 2. Optimize detailed issues;