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> Analog technology > What is a 10 Ohm Resistor? 10 Ohm Resistor Color Code

What is a 10 Ohm Resistor? 10 Ohm Resistor Color Code

업데이트 시간: 2024-01-12 13:44:37


What is a 10 Ohm Resistor?

Resistors are crucial electronic components designed to impede the flow of electric current within circuits, playing a vital role in controlling the current or voltage in electronic systems.

A 10 Ohm resistor, denoted as a 10Ω resistor, is an electronic component with a resistance value of 10 ohms. The symbol "Ω" represents the unit of electrical resistance—ohms. The numerical value in the resistor's designation indicates its resistance in ohms. In the case of a 10 Ohm resistor, the resistance is precisely 10 ohms.

The measurement unit for electrical resistance, 10 ohms, signifies the degree of opposition a material presents to the passage of electric current. In practical terms, a resistance value of 10 ohms indicates a moderate level commonly encountered in various electronic components, including resistors.

10 Ohm Resistor.jpg

10 Ohm Resistor Color Code

Band NumberColorValue

1st digit 1

2nd digit 0

3rd multiplier:1


10 Ohm



The color code for resistors serves as an indicator of their resistance. This code can consist of 3, 4, or 5 color bands, each corresponding to a specific number contributing to the overall resistance value. It's important to note that the body color holds no significance.

The illustration displays the color representation of a 10 Ohm resistor with a tolerance of ±5%. For a resistor with 4 bands, the color code involves Brown, Black, Black, and Gold bands.

10 ohm Resistor Color Code 4 band.jpg

The computation is as follows:

  • 1st band = Brown = 1 (1st digit)

  • 2nd band = Black = 0 (2nd digit)

  • 3rd band = Black = 1 (multiplier)

  • 4th band = Gold = ±5% (tolerance)

Hence, 10 × 1 ± 5% results in 10Ω, with a tolerance of ±0.5Ω. The final estimated value of the 10Ω resistor falls within the range of 9.5 to 10.5Ω.

A word of caution: A thorough inspection is advised if a resistor displays Red and Brown color bands. Red and brown can appear quite similar once integrated into the circuit.

Alternative methods involve using a Digital Multimeter (DMM) to measure resistor values, considered the most accurate approach. However, be cautious, as DMM readings may be inaccurate when a resistor is on board. In such cases, relying on the color code proves to be valuable.

For situations where a 10 ohm resistor is unavailable, refer to the provided table to obtain the necessary information:

Table to obtain 10 ohm resistor when not available.png

How to Read a 10 Ohm Resistor Color Code for a 4-band Resistor

The color assigned to the initial band signifies the value of the first significant digit, with Brown denoting the value 1.

Moving on to the second band, its color indicates the value of the second significant digit. In this instance, the band is Black, signifying the value 0. This value is appended to the right of the first digit from the initial band, resulting in the combined digits 10.

The third band introduces a decimal multiplier to derive the resistance value by multiplying the first two digits. The multiplier is represented as 10n, where n corresponds to the color value of the band. In the current scenario, the third band is Black, aligning with 0. Consequently, the multiplier is 100, equivalent to 1.

Thus, the cumulative resistance value determined by the color code is 10 x 100 Ω = 10 Ω.

The fourth band conveys tolerance values, with a Gold band indicating a 5% tolerance.

Consequently, a resistor with color bands Brown, Black, and Black Gold signifies a resistance value of 10 Ohms with a tolerance of ±5%.

If you want to measure the color code of other resistors besides 1k ohm resistor color code, you can use Resistor Color Code Calculator, which will help you to identify the color code of resistors accurately and quickly. Besides that, you can read this article for details about the color codes of the 10k resistors: What is a 10k Resistor?10k ohm Resistor Color Code.

Applications of 10 Ohm Resistor

Due to its specific resistance value, the 10 Ohm resistor finds application in various electronic circuits and systems. Some common applications include:

Current Limiting: In electronic circuits, a 10 Ohm resistor can be employed to limit current flow, protecting sensitive components from excessive current levels.

Voltage Divider Circuits: 10 Ohm resistors are utilized in voltage divider circuits to distribute voltage across different components, enabling precise voltage control.

LED Current Limiting: When connected in series with LEDs, a 10 Ohm resistor helps limit the current flowing through the LEDs, preventing damage and ensuring proper operation.

Sensor Interface: In sensor circuits, 10 Ohm resistors can be integrated to interface sensors with microcontrollers or other electronic devices, facilitating signal conditioning.

Audio Circuits: They are used in audio circuits for impedance matching and controlling signal levels within amplifiers and other audio devices.

Power Supply Circuits: 10 Ohm resistors are sometimes included in power supply circuits for current sensing or as part of feedback networks to stabilize and regulate the output.

Filter Networks: In combination with capacitors and inductors, 10 Ohm resistors create filter networks in electronic systems, shaping the frequency response.

Temperature Sensors: When used with temperature-sensitive elements, 10 Ohm resistors can play a role in temperature-sensing circuits.

Motor Control: In certain motor control circuits, 10 Ohm resistors may be employed for current sensing or as part of speed control mechanisms.

Educational Purposes: They are commonly used in educational settings for practical demonstrations and experiments due to their moderate resistance value.

10 Ohm Resistors.jpg

Final Words

Understanding the color code of a 10 Ohm resistor is crucial for correctly incorporating it into electronic circuits. The color bands represent the resistance value and provide information about the tolerance. Engineers and hobbyists can precisely identify and utilize the 10 Ohm resistor in their electronic designs by decoding the color bands, ensuring accurate and reliable circuit performance.

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  • What Colour is a 10 ohm resistor?
  • Brown, Black, Black, Golden.

  • What is the use of 10 ohm resistor?
  • The resistor with a 10 ohm value is employed in voltage divider configurations and situations where maximizing current flow is essential.

  • What is the voltage along 10 ohm resistor?
  • V=10*12/30=4V.

  • Is 10R the same as 10 ohm?
  • The initial two (or three) digits represent the leading figures of the value, while the last digit designates the multiplier. In the provided example, the actual value is not 100 ohms, as one might assume, but is indeed 10 ohms. Resistors with such low values are occasionally labeled as 10R.

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