1.2K resistor is a popular resistor in the electric world. It is part of many delicate circuits. It is essential for the proper functioning of the circuit. A layman may consider it a passive component in the circuit, but it can do surprising things. Let’s dig deeper to know more about resistors, especially 1.2K resistors.

**What Is A 1.2K Resistor?**

A 1.2K resistor is a resistor with a resistance of 1.2-kilo ohms. If you are a layman, then you may get confused. In simple words, when an electric current flows through the resistor, it will come across a resistance of 1.2 thousand ohms. The unit “k” represents the “kilo,” which means thousand. The symbol “Ω” represents the unit of electrical resistance, called “ohm.” What are the resistors?

Resistors are electronic components. Many of you may familiar with them. Resistors are part of circuits for different purposes. For example, to limit the current flow, voltage divider resistors are your best friends. The resistance value is measured in ohms, kilohms, or megohms. Different resistors have different values. For example, if you are using a 1.2K resistor in the circuit. Then electric current encounters the 1.2-kilo ohms resistance. As a result, it can affect the behavior of the circuit.

**What Are the Popular Uses Of 1.2K Resistors?**

- Like other resistors, 1.2K resistors also have a wide range of uses in electronic devices and circuits. Their uses depend upon the specific application and requirements. The following are some examples of devices and circuits where a 1.2K resistor is a good choice.
- In a voltage divider circuit, a 1.2K resistor can be used to divide the voltage between two points in the circuit. For example, it can be used to create a voltage reference for an analog-to-digital converter.
- In a circuit that includes an LED, a 1.2K resistor is a good choice. Its limits the flow of current
- In an amplifier circuit, a 1.2K resistor can do wonders. It works as part of a biasing network to set the operating point of the amplifier. A 1.2K resistor can be used as part of a feedback network to stabilize the gain of the amplifier. The feedback network has resistors. It helps to reduce distortion and improve the frequency response of the amplifier.
- In digital circuits, a 1.2K resistor serves best and fulfills the requirements.

**What Is The Color Code Of The 1.2K Resistor?**

A 1.2K resistor has a color code of brown, red, red, and gold. Here’s how to interpret the color code:

The first band is brown, which represents the number 1. The second band is red, which represents the number 2. The third band is also red, which means there is an additional zero that needs to be added to the number. So the actual value of the resistor is 12 with one zero added, which is 1.2 in scientific notation.

The fourth band is gold, which represents the tolerance of the resistor. Therefore, a 1.2K resistor with a tolerance of +/- 5 percent would have the color code of brown, red, red, and gold.

** Things To Keep In Mind While Using A 1.2K Resistor In The Circuit**

Following are some important things to keep in mind while using a 1.2K resistor in a circuit:

- Make sure the power rating of the 1.2K resistor is sufficient for the circuit. Exceeding the power rating can cause the resistor to overheat and possibly fail.
- Verify the resistor’s tolerance: Resistors have a tolerance, which specifies how close the actual resistance value can be to the nominal resistance value. Make sure the resistor’s tolerance is acceptable for your circuit’s requirements.
- Make sure the resistor is installed in the correct orientation. Otherwise, you may encounter unexpected results.
- Make sure the resistor is not exposed to any high temperatures, humidity, or other environmental conditions.

**Frequently Asked Questions?**

**What Is the Difference Between 1.2 And 2.1 K Resistors?**

Many people confuse both of these two resistors. A person who has good knowledge may know the difference well. 2.1 K resistor has more resistance compared to the 1.2K resistance.

A 1.2K resistor has a resistance of 1.2Kilo-ohms, while a 2.1 K resistor has a resistance of 2.1 Kilo-ohms. Therefore, a 2.1 K resistor will limit the flow of electrical current in a circuit more than a 1.2K resistor.

**Which Resistor Is Best Between 1.2 And 2.1 K Resistors?**

The choice of which resistor to use in a circuit depends on the specific requirements of the circuit, such as the desired current flow and voltage drop.

If the circuit requires a higher resistance, then the 2.1 KΩ resistors would be the better choice. On the other hand, if the circuit requires a lower resistance, then the 1.2KΩ resistor would be the better choice.

It is important to note that the choice of resistor also depends on other factors, such as the power rating of the resistor. Tolerance and the temperature coefficient are also important. Therefore, when selecting a resistor, it is important to consider all of these factors. As a result, you can choose the resistor that best meets your needs

**From Where I Can Buy Online 1.2k Resistors in Bulk?**

There are several vendors on many online platforms. They are selling electronic components, including resistors, in bulk. Read the reviews regarding your selected vendors and then go for purchase. If reviews and ratings are good, then you must go for them. If you find some negative reviews, then consider it a red flag. A reliable vendor will provide you best quality electronic components.

**Conclusion**

The 1.2K resistor is an important part of electronic circuits. That’s why it has several uses, such as a current limiter, a voltage divider, and as part of feedback networks. You cannot complete your circuit without a resistor. Its importance lies in its ability to control the flow of current and voltage in a circuit. That’s why it is essential for a proper circuit operation.