RT22C2P500 Potentiometers, Variable Resistors

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Trimpot potentiometers, which have been around since the 1950s, have been widely used in a variety of applications. RT22C2P500 is a new generation of trimmer potentiometers that are designed for high precision and exceptional reliability. This article will discuss the application field of RT22C2P500 as well as its working principle.

Application Field

The RT22C2P500 is mainly used in professional audio equipment, industrial and medical equipment, and other applications that require precision potentiometers with exceptional reliability. It is ideal for applications such as volume control, frequency control, voltage control, and current control. The low profile 2 mm height and compact 0.25” square body makes it perfect for portable or space-constrained equipment and simplifies the PCB design. Its long rotational life of 20,000 cycles ensures a reliable operation even in a constantly changing environment.

The RT22C2P500 offers a range of resistance options, ranging from 1KΩ to 2MΩ. The resistance tolerance varies from either 0.5%, 1%, 5% or 10%. The temperature coefficient is in the range from ±200ppm/°C to ±500ppm/°C. All of these features make it an ideal choice for a variety of applications where high precision and stability are needed.

The RT22C2P500 has a wide operating temperature range from −40°C to 85°C. This ensures that the potentiometer can handle extreme temperatures and still maintain a stable performance. The operating vibration resistance is 15g, allowing the potentiometer to withstand strong shock and vibration. In addition, the RT22C2P500 has a low power consumption rating of 0.2 W, making it suitable for battery-powered applications.

Working Principle

The RT22C2P500 is a three-terminal adjustable potentiometer. It consists of a resistor element, a wiper arm, a spindle, and three external terminals: an end terminal (labeled with “+” in the illustration) and two slider terminals (labeled with “A” and “B” in the illustration). The wiper arm is connected to the spindle and the resistor element is connected to the end terminals. As the spindle is rotated, the wiper arm moves up and down the resistor element, creating a variable resistance between the two slider terminals.

The RT22C2P500 trimmer potentiometer can be used as a voltage regulator, current controller, or as a volume or frequency adjuster. Depending on the application, you can wire it in any of the three possible configurations: as a variable resistance, as a voltage divider, or as a current controller. When wired as a voltage divider, the RT22C2P500 functions like a voltage regulator, allowing the user to adjust the output voltage. When wired as a current controller, the RT22C2P500 can be used to regulate the amount of current in a circuit.

The RT22C2P500 is designed for precision and reliability. It features an expanded resistance tolerance range of from 0.5% to 10%. This ensures that the circuit is not affected by small variations in the resistance value. The RT22C2P500 also has a long rotating life of 20,000 cycles, which ensures that it will provide reliable service for a long time.

In conclusion, the RT22C2P500 is an ideal trimmer potentiometer for many applications, especially those where precision and stability are critical. Its long life, wide resistance range and temperature coefficient make it well-suited for a variety of different applications. With its low power consumption and long-term reliability, it is the optimal choice for professional audio equipment, industrial and medical equipment, and other applications where precision and stability are important.

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