This article explains the significance of resistor color codes and provides tips on how to identify them. The color bands on a resistor can convey important information such as resistance value, tolerance, and temperature coefficient. Knowing how to read these codes can help in selecting the right resistor for a circuit and troubleshooting potential issues.
How to identify
The lines on a resistor are known as color bands, and they represent the resistor’s value and tolerance. Resistors commonly have 4 bands and 5 bands, and we will explain using the 4-band system.
To identify the resistor value, you need to look at the color of the bands. The first two bands represent the significant digits of the resistance value, while the third band represents the multiplier. The fourth band represents the tolerance of the resistor.
Here is a guide to interpreting the color bands on a resistor:
- The first band represents the first significant digit of the resistance value.
- The second band represents the second significant digit of the resistance value.
- The third band represents the multiplier, which is the number of zeros that follow the significant digits.
- The fourth band represents the tolerance of the resistor, which indicates the range within which the actual resistance value may vary from the stated value.
There are also some additional markings that may be present on resistors, such as the manufacturer’s logo or part number.
If you want to learn how to adjust voltage and current for an LED using a resistor, you can read this article.
English Version
This article explains the significance of resistor color codes and provides tips on how to identify them. The color bands on a resistor can convey important information such as resistance value, tolerance, and temperature coefficient. Knowing how to read these codes can help in selecting the right resistor for a circuit and troubleshooting potential issues.
How to identify
The lines on a resistor are known as color bands, and they represent the resistor’s value and tolerance. Resistors commonly have 4 bands and 5 bands, and we will explain using the 4-band system.
To identify the resistor value, you need to look at the color of the bands. The first two bands represent the significant digits of the resistance value, while the third band represents the multiplier. The fourth band represents the tolerance of the resistor.
Here is a guide to interpreting the color bands on a resistor:
- The first band represents the first significant digit of the resistance value.
- The second band represents the second significant digit of the resistance value.
- The third band represents the multiplier, which is the number of zeros that follow the significant digits.
- The fourth band represents the tolerance of the resistor, which indicates the range within which the actual resistance value may vary from the stated value.
There are also some additional markings that may be present on resistors, such as the manufacturer’s logo or part number.
If you want to learn how to adjust voltage and current for an LED using a resistor, you can read this article.
日本語版
この記事では、抵抗器のカラーコードの意味と識別方法について説明します。抵抗器のカラーバンドは、抵抗値、許容差、温度係数などの重要な情報を伝えます。これらのコードの読み方を知ることで、回路に適した抵抗器の選択やトラブルシューティングに役立ちます。
識別方法
抵抗器の線はカラーバンドと呼ばれ、抵抗器の値と許容差を表します。抵抗器には一般的に4本バンドと5本バンドがあり、ここでは4本バンド方式で説明します。
抵抗値を識別するには、バンドの色を確認する必要があります。最初の2本のバンドは抵抗値の有効数字を表し、3番目のバンドは乗数を表します。4番目のバンドは抵抗器の許容差を表します。
以下は抵抗器のカラーバンドの読み方ガイドです：
- 1番目のバンドは、抵抗値の最初の有効数字を表します。
- 2番目のバンドは、抵抗値の2番目の有効数字を表します。
- 3番目のバンドは乗数を表し、有効数字の後に続くゼロの数を示します。
- 4番目のバンドは抵抗器の許容差を表し、実際の抵抗値が表示値からどの程度変動し得るかの範囲を示します。
抵抗器には、メーカーのロゴや部品番号など、追加のマーキングが存在する場合もあります。
