500 Ohm Resistor Color Code: Comprehensive Guide (2024)

By understanding and integrating 500 ohm resistor color codes, electronic circuits can be better understood and integrated. Resistors convey their resistance values, tolerances, and other vital qualities through color bands adorning their bodies. Educating engineers and enthusiasts alike about 500 ohm resistor color codes enables them to harness the full potential of the resistor, leading to greater precision and reliability. Explore the colorful code that hides the secrets of 500 ohm resistors like 10K OHM Resistor with us in this article. 

What is a 500 Ohm Resistor?

Electrical resistance is implemented as a circuit element by 500 Ohm resistors, which are passive two-terminal electrical components. According to the International System of Units (SI), it should have a resistance of 500 Ohms. 

Various electrical circuit functions are performed with resistors, including reducing current flow, adjusting signal levels, dividing voltages, biasing active elements, and terminating transmission lines. As stipulated by Ohm’s Law (V = IR), a resistor will produce a voltage drop across its terminals proportional to the current (V = I).

500 Ohm resistors typically have color codes on their surfaces that identify their value. Whenever it is not possible to print the resistance value directly on a component, the resistor color code is used to mark the value.

500 Ohm Resistor Color Code

A 500-ohm resistor’s resistance value, tolerance, and even temperature coefficient are represented by this color-coded system. The color code system is more common with resistors with higher resistance values, but it is less common with resistors with lower resistance values, such as 500 ohms because space is limited. Color coding still has general significance and can be applied to a wide range of applications.

Different colors are typically painted or printed on the body of the resistor to represent the color code. Information is conveyed by these bands:

  • First Band: Resistance value is represented by this band.
  • Second Band: Resistance value is represented by this band.
  • Third Band: In order to determine the resistance value, you need to multiply the first two digits by a multiplier or number of zeros.
  • Fourth Band (Optional): As indicated by this band, the actual resistance may vary within a specified range from the specified value of the resistor.

According to the color code system, colors are used in the following sequence:

  • Black: 0
  • Brown: 1
  • Red: 2
  • Orange: 3
  • Yellow: 4
  • Green: 5
  • Blue: 6
  • Violet: 7
  • Gray: 8
  • White: 9

Furthermore, multipliers and tolerance values are designated with specific colors, including gold and silver. By interpreting the colors of the bands according to the standardized chart, one can determine the resistance value of a resistor. A resistor’s resistance value would be 1500 ohms if the first band is brown (1), the second band is green (5), and the third band is red (2). In a resistor with a fourth band of gold (tolerating a 5-percent variation), the resistance may vary within 5 percent of the specified value.

It is still important to understand the basic principles behind color coding for 500 ohm resistors even though its use is less common.


Color codes for 500 ohm resistors are mostly applicable to resistors with higher resistance values, so it’s important to understand this when discussing their features. As a final touch, let’s take a closer look at the resistor itself and the color code system:

Resistance Value: An ohm is a measure of resistance, which is the primary feature of a resistor. Essentially, this means that a resistor with a resistance of 500 ohms will resist electrical current flow by 500 ohms.

Color Code System: To indicate a resistor’s resistance value, tolerance, and temperature coefficient, colored bands are painted or printed on its body. Understanding the color code system is important for interpreting the values of resistors, even for lower resistance values like 500 ohms.

Tolerance: Resistors are rated for tolerances, which indicate how much their actual resistance can vary from their specification. Resistors typically have tolerances of 1%, 5%, and 10%. It is the tolerance of the resistor that limits the range within which it can be used to determine its resistance.

Power Rating: An Impedance Rating (IR) describes how much power can be dissipated from a resistor before it ruptures. During operation, heat generated by the resistor is crucial to its performance. Depending on the size and construction of the component, resistors have power ratings ranging from 1/8 watt to several watts.

Temperature Coefficient: Temperature coefficients indicate how resistors change in resistance with temperature. A resistor’s operating temperature may vary significantly in applications where this feature is particularly beneficial.

Material Composition: Various materials can be used to make resistors, including carbon film, metal film, and wire-wound. Temperature coefficients, durability, and precision of each material vary.

Environmental Considerations: Depending on the resistor, harsh environmental conditions may be accommodated, including moisture, humidity, or extreme temperatures. In automotive, aerospace, or industrial applications where high reliability is critical, these resistors are commonly used.


Due to space constraints, color code systems are less commonly used for resistors with lower values, such as 500 ohms, even though they are a valuable tool for identifying resistance values. As an alternative, numerical markings which directly indicate resistance values, like “500Ω” or “500R,” are often used. Color coding in electronic circuits is essential for interpreting resistor values and understanding the broader impact of resistors on electronic circuits. The importance of the color code system in resistor identification cannot be overlooked, even though it is not as prevalent for 500 ohm resistors. If you want ot learn more about, then check out: Blikai Electronics.

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