47K Ohm Linear Rotary Potentiometer (47KΩ Adjustable Variable Resistor)

The 47K Ohm Linear Rotary Potentiometer (47KΩ Adjustable Variable Resistor) is a premium-quality variable resistor designed to provide smooth, accurate, and reliable manual adjustment of voltage, current, and signal levels in a wide variety of electronic circuits. With a maximum resistance of 47K Ohms (47,000Ω) and a linear taper, this potentiometer offers uniform resistance variation throughout the entire rotation of the shaft, making it ideal for applications that require precise and predictable control.

The potentiometer consists of a high-quality resistive track, a durable rotating shaft, and a movable wiper that slides across the resistive element as the shaft is turned. This movement changes the resistance between the terminals or adjusts the output voltage when configured as a voltage divider. Its linear response ensures that the resistance changes proportionally with the shaft position, making it highly suitable for calibration, tuning, analog signal adjustment, sensor interfacing, and voltage control applications.

Manufactured using premium resistive materials and corrosion-resistant metal contacts, the 47K Ohm Linear Rotary Potentiometer provides excellent electrical stability, low contact noise, smooth rotational movement, and long mechanical life. The sturdy metal shaft is compatible with standard control knobs, while the threaded bushing allows secure panel mounting for easy installation in electronic equipment, control panels, and custom enclosures.

This potentiometer is widely used in Arduino, ESP32, ESP8266, Raspberry Pi, STM32, analog control circuits, audio equipment, amplifiers, power supplies, robotics, industrial automation systems, embedded electronics, laboratory instruments, educational kits, DIY electronics, and electronic repair applications. It is commonly used for volume control, LED brightness adjustment, motor speed control, sensor calibration, reference voltage generation, signal conditioning, and analog input applications.

Its compact size, simple three-terminal design, and dependable performance make it an essential component for engineers, technicians, students, hobbyists, and electronics enthusiasts who require accurate manual control in analog and embedded electronic systems.

Working Principle

The 47K Ohm Linear Rotary Potentiometer operates by changing resistance through the rotation of its shaft.

Inside the potentiometer, a resistive element is connected between the two outer terminals, while the center terminal is connected to a movable contact called the wiper. As the shaft is rotated, the wiper moves along the resistive track, changing the resistance between the center terminal and each outer terminal.

When used as a voltage divider, the potentiometer provides an adjustable output voltage proportional to the shaft position. When connected as a variable resistor (rheostat), it controls current flow by varying the resistance in the circuit.

Because it features a linear taper, the resistance changes evenly across the full rotation, making it ideal for applications requiring precise and consistent adjustment.

Key Features

• Resistance value: 47KΩ (47,000 Ohms)

• Linear taper for uniform resistance adjustment

• Smooth and precise rotary operation

• Adjustable variable resistor

• Three-terminal configuration

• High electrical stability

• Low noise operation

• Durable resistive element

• Corrosion-resistant metal contacts

• Long mechanical lifespan

• Standard rotary shaft compatible with control knobs

• Threaded bushing for secure panel mounting

• Compact and lightweight design

• Easy PCB and panel installation

• Reliable long-term performance

Applications

The 47K Ohm Linear Rotary Potentiometer is widely used in:

• Arduino projects

• ESP32 development boards

• ESP8266 IoT projects

• Raspberry Pi electronics

• STM32 development

• Analog input circuits

• Voltage divider circuits

• Sensor calibration

• Signal conditioning

• Audio amplifiers

• Volume control circuits

• Tone adjustment systems

• LED brightness control

• Motor speed control

• Power supply voltage adjustment

• Robotics

• Industrial automation

• Embedded systems

• Laboratory instruments

• Test and measurement equipment

• DIY electronics

• Educational electronics

• Electronic repair and maintenance

Specifications

• Product Type: Linear Rotary Potentiometer

• Resistance Value: 47KΩ (47,000 Ohms)

• Taper Type: Linear

• Number of Terminals: 3

• Adjustment Method: Rotary Shaft

• Mounting Type: Panel Mount / PCB Mount (depending on model)

• Shaft Material: Metal

• Body Material: High-quality insulating plastic with metal housing

• Operating Principle: Variable resistor / Voltage divider

• Mechanical Rotation: Approximately 270° (varies by model)