{"product_id":"1m-ohm-linear-rotary-potentiometer-1mω-adjustable-variable-resistor","title":"1M Ohm Linear Rotary Potentiometer (1MΩ Adjustable Variable Resistor) (1 pcs)","description":"\u003ch3\u003e1M Ohm Linear Rotary Potentiometer (1MΩ Adjustable Variable Resistor)\u003c\/h3\u003e\n\u003cp\u003eThe 1M Ohm Linear Rotary Potentiometer (1MΩ Adjustable Variable Resistor) is a high-quality variable resistor designed to provide smooth and precise manual adjustment of voltage, current, and signal levels in a wide range of electronic circuits. With a maximum resistance of 1 Mega Ohm (1MΩ) and a linear taper, this potentiometer delivers uniform resistance changes throughout its rotation, making it ideal for applications that require accurate and predictable control.\u003c\/p\u003e\n\u003cp\u003eThis rotary potentiometer features a durable rotating shaft connected to an internal resistive element and a movable wiper. As the shaft is turned, the wiper moves across the resistive track, changing the output resistance or voltage according to the shaft position. Its linear response makes it particularly suitable for calibration, tuning, analog signal adjustment, sensor control, voltage division, and microcontroller-based electronics projects.\u003c\/p\u003e\n\u003cp\u003eManufactured using high-quality resistive materials and precision metal contacts, the potentiometer offers smooth operation, excellent electrical stability, low noise, and long mechanical life. The sturdy shaft is designed for easy attachment of standard control knobs, while the threaded bushing allows secure panel mounting for reliable installation in electronic equipment and control panels.\u003c\/p\u003e\n\u003cp\u003eThe 1M Ohm Linear Rotary Potentiometer is widely used in Arduino, ESP32, ESP8266, Raspberry Pi, STM32, audio equipment, amplifiers, power supplies, industrial control systems, robotics, automation equipment, DIY electronics, laboratory instruments, educational projects, and embedded system development. It is also commonly used for brightness control, motor speed adjustment, voltage regulation, sensor calibration, and analog input applications.\u003c\/p\u003e\n\u003cp\u003eIts compact design, simple three-terminal configuration, and reliable performance make it an essential component for engineers, technicians, students, hobbyists, and electronics enthusiasts who require accurate manual control in electronic circuits.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eWorking Principle\u003c\/h3\u003e\n\u003cp\u003eThe potentiometer works by varying resistance through a rotating shaft connected to a movable contact (wiper).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eA resistive track is connected between two outer terminals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe center terminal is connected to the movable wiper.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRotating the shaft moves the wiper along the resistive element.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe resistance between the center terminal and either outer terminal changes proportionally.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhen used as a voltage divider, it provides an adjustable output voltage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhen used as a variable resistor (rheostat), it controls current flow by varying resistance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBecause it uses a linear taper, the resistance changes evenly with shaft rotation, allowing precise and predictable adjustments.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eResistance value: 1MΩ (1 Mega Ohm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLinear taper for uniform resistance adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSmooth rotary operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdjustable variable resistor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThree-terminal design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDurable resistive element\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh electrical stability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLow noise operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLong mechanical life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStandard rotary shaft compatible with control knobs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThreaded bushing for secure panel mounting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompact and lightweight design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEasy PCB or panel installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReliable long-term performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eThe 1M Ohm Linear Rotary Potentiometer is widely used in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eArduino projects\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eESP32 development\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eESP8266 projects\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRaspberry Pi electronics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSTM32 development boards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAnalog input circuits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVoltage divider circuits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSignal adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSensor calibration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAudio equipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAudio amplifiers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVolume control circuits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTone control circuits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMotor speed control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLED brightness adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower supply voltage adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRobotics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial automation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eControl panels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLaboratory instruments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEmbedded systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTest and measurement equipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDIY electronics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEducational electronics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eElectronic repair and maintenance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eProduct Type: Linear Rotary Potentiometer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eResistance Value: 1MΩ (1 Mega Ohm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTaper Type: Linear\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNumber of Terminals: 3\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdjustment Method: Rotary Shaft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMounting Type: Panel Mount \/ PCB Mount (depending on model)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eShaft Material: Metal\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBody Material: High-quality insulating plastic with metal housing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOperating Principle: Variable resistor \/ Voltage divider\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical Operation: Smooth 270° rotation (varies by model)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Electro Robo Store","offers":[{"title":"Default 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