Resistors are essential components in electronic circuits, controlling current and voltage to ensure the proper functioning of devices. One of the most common types of resistors is the 4-band resistor. To identify its resistance value and tolerance accurately, understanding the 4 band resistor color code is essential. At Origin Data, we provide a powerful online tool that makes decoding the 4 band resistor color code fast, simple, and accurate for engineers, hobbyists, and students alike.

What Is a 4 Band Resistor Color Code?

A 4 band resistor color code uses four colored bands printed on the resistor to indicate its value and tolerance. The first two bands represent the significant digits of the resistor value, the third band represents the multiplier, and the fourth band shows the tolerance.

Using the 4 band resistor color code ensures that resistors are correctly identified and used in circuits, preventing errors that could lead to malfunction or damage.

How to Read the 4 Band Resistor Color Code

Reading a 4 band resistor color code is straightforward once you know the meaning of each color. Here’s a standard reference:

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

The fourth band represents tolerance:

• Gold = ±5%
• Silver = ±10%
• No Band = ±20%

For example, a resistor with bands red, violet, yellow, gold would be interpreted as follows:

• Red = 2 (first digit)
• Violet = 7 (second digit)
• Yellow = ×10,000 (multiplier)
• Gold = ±5% tolerance

This gives a resistance value of 270,000Ω (270kΩ) with ±5% tolerance.

While decoding manually is possible, it can be time-consuming and prone to errors, especially when working with multiple resistors. Using Origin Data’s 4 band resistor color code tool simplifies the process. Simply select the colors, and the tool instantly calculates the resistance value and tolerance, saving time and reducing mistakes.

Why the 4 Band Resistor Color Code Matters

The 4 band resistor color code is widely used because it provides a balance between simplicity and accuracy. It is commonly found in many electronic applications, such as:

• Audio and amplifier circuits
• Voltage dividers
• LED circuits
• Power supply circuits

Understanding the 4 band resistor color code helps ensure that the correct resistor is used for the intended application, preventing circuit errors and improving overall reliability.

For students and beginners, learning this code is an excellent introduction to electronics. For professionals, it provides a quick and reliable way to verify resistor values in design, repair, or testing.

Simplify Resistor Identification with Origin Data

At Origin Data, we make resistor decoding easy with our online 4 band resistor color code calculator. This tool supports all standard resistor types and provides fast, accurate results.

Key benefits include:

• Accurate decoding for all 4-band resistors
• User-friendly interface for beginners and professionals
• Instant calculation of resistance value and tolerance
• Accessible on both desktop and mobile devices

Beyond tools, Origin Data is a trusted global supplier of high-quality electronic components, including resistors, capacitors, semiconductors, and integrated circuits.

About Origin Data

Origin Data is a global leader in providing reliable electronic components and tools. Our mission is to help engineers, students, and hobbyists work efficiently and accurately. With our 4 band resistor color code tool, identifying resistor values has never been easier.

Whether you are designing a circuit, repairing electronics, or learning the fundamentals, Origin Data ensures precision, reliability, and convenience in all your projects.

Conclusion

Mastering the 4 band resistor color code is essential for anyone working with electronics. For quick, accurate decoding of resistor values, visit Origin Data’s 4 band resistor color code tool today. Simplify your work, save time, and ensure reliability in every circuit with Origin Data.

Follow us:

YouTube: https://www.youtube.com/@Origin_Data
Facebook: https://www.facebook.com/OriginDataGlobalLimited
Twitter: https://twitter.com/Origin_IC
TikTok: https://www.tiktok.com/@origin_data
Szxlxc: https://www.szxlxc.com