{"id":10199,"date":"2026-08-18T17:03:50","date_gmt":"2026-08-18T09:03:50","guid":{"rendered":"https:\/\/uetpcb.com\/?p=10199"},"modified":"2026-08-18T17:03:50","modified_gmt":"2026-08-18T09:03:50","slug":"how-to-wire-a-potentiometer-pinout-voltage-divider-circuits-and-pcb-design-tips","status":"publish","type":"post","link":"https:\/\/uetpcb.com\/es\/how-to-wire-a-potentiometer-pinout-voltage-divider-circuits-and-pcb-design-tips\/","title":{"rendered":"C\u00f3mo conectar un potenci\u00f3metro: disposici\u00f3n de los pines, circuitos divisores de tensi\u00f3n y consejos para el dise\u00f1o de placas de circuito impreso"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">A potentiometer is a crucial device that helps in several circuits and systems. Whether you are designing an audio amplifier, calibrating a sensor, adjusting LED brightness, controlling motor speed, or creating an analog user interface, a potentiometer provides an effective and fast way to control and adjust the current and voltage values.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">However, wiring a potentiometer is essential for its seamless functionality. Wiring looks simple and efficient, but it can be technical if you are a newbie and don&#8217;t know the right terminals.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">We will discuss how to hook up a potentiometer and understand various steps and components. Let&#8217;s know!<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">What is a Potentiometer?<\/span><\/h2>\n<p><img decoding=\"async\" class=\"alignnone  wp-image-10079\" src=\"https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-on-pcb-300x225.webp\" alt=\"Cableado del potenci\u00f3metro en la placa de circuito impreso\" width=\"347\" height=\"260\" srcset=\"https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-on-pcb-300x225.webp 300w, https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-on-pcb-1030x773.webp 1030w, https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-on-pcb-768x576.webp 768w, https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-on-pcb.webp 1280w\" sizes=\"(max-width: 347px) 100vw, 347px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">A potentiometer is a three-terminal variable resistor with a resistive track and a movable contact. Rotation of the potentiometer knobs can help adjust the voltage and resistance values in a circuit.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Unlike fixed resistors, a potentiometer makes the current and resistance values adjustable and variable.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Common applications of a potentiometer include:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Volume controls<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Light dimmers<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sensor calibration<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Motor speed adjustment<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Instrument tuning<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Reference voltage generation<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">User interface controls<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Industrial equipment calibration<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Understanding Potentiometer Pinout<\/span><\/h2>\n<p><img decoding=\"async\" class=\"alignnone  wp-image-10078\" src=\"https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-300x169.webp\" alt=\"potentiometer wiring\" width=\"359\" height=\"202\" srcset=\"https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-300x169.webp 300w, https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-1030x581.webp 1030w, https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-768x433.webp 768w, https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring.webp 1280w\" sizes=\"(max-width: 359px) 100vw, 359px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Many potentiometers have three terminals with the following configurations.<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Pin 1<\/b><span style=\"font-weight: 400;\"> is often a fixed terminal and is at one end of the resistive track.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Pin 2<\/b><span style=\"font-weight: 400;\"> is often an adjustable output called the wiper.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Pin 3<\/b><span style=\"font-weight: 400;\"> is also a fixed Terminal and is available at the opposite end of the resistive track.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">The outer terminals remain fixed and constant while the center pin moves.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">As the knob moves:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Wiper moves toward Pin 1<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Resistance between Pin1 and Pin2 decreases<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Resistance between Pin2 and Pin3 increases<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">The total resistance between Pin 1 and Pin 3 remains constant and fixed due to fixed terminals.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Types of Potentiometers<\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">There are different types and configurations of potentiometers. Here are a few types listed easily<\/span><\/p>\n<p><span style=\"font-weight: 400;\">.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Rotary<\/span> <span style=\"font-weight: 400;\">Shaft often provides rotational motion control and is commonly used in audio and electronics.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Slide potentiometers have a linear slider and are useful for audio mixers.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Trimmer (Preset) has a Small adjustable knob and is suitable for PCB calibration.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Multi-turn potentiometers have high precision and are ideal for instrumentation.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Digital potentiometers are controlled electronically and are part of embedded systems.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Wiring a Potentiometer as a Voltage Divider<\/span><\/h2>\n<p><img decoding=\"async\" class=\"alignnone  wp-image-10080\" src=\"https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-guide-how-to-choose-300x210.webp\" alt=\"potentiometer-wiring-guide-how-to-choose\" width=\"426\" height=\"298\" srcset=\"https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-guide-how-to-choose-300x210.webp 300w, https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-guide-how-to-choose-1030x721.webp 1030w, https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-guide-how-to-choose-768x538.webp 768w, https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-guide-how-to-choose-1536x1075.webp 1536w, https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-guide-how-to-choose.webp 2000w\" sizes=\"(max-width: 426px) 100vw, 426px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">The most common configuration for wiring a pot is as a voltage divider. All three terminals are used to configure and use it in this system.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The connections are as follows:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pin 1 \u2192 Ground<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pin 3 \u2192 Supply Voltage<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pin 2 \u2192 Output Voltage<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Shaft position changes the output voltage and has a significant impact. Here are a few applications of the potentiometer as a voltage divider.<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Analog inputs<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">ADC reference adjustment<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Brightness control<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Variable power supplies<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Position sensing<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Wiring a Potentiometer as a Variable Resistor\u00a0<\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">A variable resistor is also called a rheostat. Instead of three terminals, this configuration requires only two: one wiper terminal and a fixed terminal.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">It helps control the resistance and is suitable in the following applications.<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">LED current adjustment<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Motor speed control<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Current limiting<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Heater control<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Laboratory testing<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>Choosing the Correct Potentiometer Value<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Often, 10k\u03a9 is the most commonly used resistance value. However, there can be many other values listed below.<\/span><\/p>\n<p>&nbsp;<\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Resistance<\/b><\/td>\n<td><b>Typical Applications<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1k\u03a9<\/span><\/td>\n<td><span style=\"font-weight: 400;\">High-current circuits<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">5k\u03a9<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Controles industriales<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">10k\u03a9<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Arduino, sensors<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">50k\u03a9<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Signal adjustment<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">100k\u03a9<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Audio circuits<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">500k\u03a9<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Amplifiers<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1M\u03a9<\/span><\/td>\n<td><span style=\"font-weight: 400;\">High-impedance circuits<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Potentiometer Wiring Examples<\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">We have added a few potentiometer wiring examples listed below.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Arduino Analog Input<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Arduino analog input has the following terminals and connections.<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pin1 \u2192 GND<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pin2 \u2192 A0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pin3 \u2192 5V<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">When you rotate the knob, it changes the values between:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">1023<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">It is ideal for the following applications and conditions.<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Servo control<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Menu navigation<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Speed control<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sensor simulation<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>LED Brightness Control<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Potentiometers help control the brightness and provide a quality control voltage for the PWM controllers.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Typical uses of the potentiometers include:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Decorative lighting<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Instrument panels<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Display backlights<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Control knobs<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>Audio Volume Control<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Many audio Volume Control Systems also use the potentiometer to adjust the settings.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The wiring system is as follows:<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Input \u2192 Potentiometer \u2192 Amplifier<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The wiper feeds the amplifier input and helps streamline the volume changes.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Sensor Calibration<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Industrial sensors require calibration. Thanks to the potentiometer, the following sensors can be calibrated.<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pressure sensors<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Temperature transmitters<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Flow meters<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Analog instrumentation<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Testing A Potentiometer\u00a0<\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">A digital multimeter is a crucial tool for testing a potentiometer. Here are three main steps to test a potentiometer.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Step 1: Measure Between Two Outer Terminals\u00a0<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">First, measure the resistance between the two outer pins. Since it is constant, it equals the rated resistance value. For example, a 10k\u03a9 potentiometer gives an expected reading of approximately 10k\u03a9.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Step 2: Measure Between Wiper and Pin1<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Now you should measure the resistance between the wiper and Pin1. It should technically change smoothly and provide accurate values.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Step 3:\u00a0 Measure Between Wiper and Pin3<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Now measure between the wiper and Pin3. Remember, values should change inversely to the previous measurements.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Any sudden jumps, dead spots, or open circuits indicate damaged or worn potentiometers.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">PCB Design Tips for Potentiometer\u00a0<\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">A well-designed PCB offers accurate values and long-term reliability.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Place the Potentiometer Near the Circuit It Controls<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Placing the potentiometer near the circuits has several benefits. For example:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Lower noise<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Reduced voltage drop<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mejor integridad de la se\u00f1al<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fewer EMI issues<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>Separate Analog and Digital Traces<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Sometimes analog circuits are sensitive. Digital traces can interfere with the sensitive analog circuits and cause issues. Therefore, you should maintain a distance between:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Clock lines<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PWM traces<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">High-current paths<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Analog wiper signals<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>Use a Solid Ground Plane<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Ground planes have several benefits in reducing the following issues.<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Noise<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ground loops<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Electromagnetic interference<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">It is crucial for audio and precision measurement circuits.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Route the Wiper Trace Carefully<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">The wiper is the most crucial terminal. You should keep the wiper trace:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Short<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Away from switching regulators<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Away from relays<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Away from high-current traces<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>Select Proper Mounting Style<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">There are different mounting styles, such as:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Agujero pasante<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Surface mount<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Panel mount<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Right-angle mount<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Always prefer the right mounting style based on:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mechanical strength<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">User accessibility<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Manufacturing method<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>Allow Mechanical Clearance<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Mechanical interference is a major issue if your rotating shaft doesn&#8217;t offer the right clearance. You should check the following options for mechanical clearance:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Knob diameter<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Panel thickness<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mounting hardware<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Nearby components<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>Consider Environmental Protection<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">For harsh environmental conditions, you need to improve the reliability of the potentiometers. Such environmental conditions demand:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sealed potentiometers<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Dust-resistant designs<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Waterproof housings<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Corrosion-resistant terminals<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Common Wiring Mistakes<\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">When wiring a potentiometer, you might make a few mistakes related to wiring and connections. Here are a few mistakes with their solutions listed.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Using the Wrong Potentiometer Value<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">A compatible potentiometer value helps choose the right options. The wrong selection can cause system failure. To avoid failure, we have added a few tips.<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Choose the resistance value recommended in the circuit design.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Use 10k\u03a9 for most microcontroller analog input applications unless specified otherwise.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Consider the input impedance of the connected circuit before selecting a value.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>Wiring wrong pins\u00a0<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Outer pins are constant, while the wiper provides the adjustability features. You should choose the right wires and connections according to your pin systems.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Here are a few tips.<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Identify the center pin as the wiper before making connections.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Verify the pinout using the manufacturer&#8217;s datasheet.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Test the pin configuration with a multimeter if you are unsure.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><b>Skipping Circuit Testing\u00a0<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Testing is essential to know all the values and parameters before the operations. If you don&#8217;t test the circuit, the wrong combination can cause accidents and may damage your system components.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Here are a few tips to avoid such issues:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Measure the total resistance between the two outer terminals.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Rotate the shaft and ensure resistance changes smoothly.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Double-check all wiring connections before applying power.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Preguntas frecuentes<\/span><\/h2>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Why is my potentiometer output unstable?<\/b><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">If you are experiencing unstable output values, it can be due to poor wiring, electrical noise, a worn wiper, incorrect grounding, long signal traces, or exceeding the component&#8217;s electrical ratings.<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>What is the difference between a linear and a logarithmic potentiometer?<\/b><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">A linear potentiometer changes resistance values uniformly. A logarithmic potentiometer follows the logarithmic curves and changes the values according to the curves.<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>What is the most common potentiometer value?<\/b><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">10k\u03a9 is the most common potentiometer value used globally. It is often used in microcontrollers, sensor interfaces, and general-purpose voltage divider circuits.<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Can I use only two pins of a potentiometer?<\/b><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Yes. Switching a potentiometer to two pins converts it into a rheostat. You should have the wiper and one outer terminal in such a case.<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Which pin is the output on a potentiometer?<\/b><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">The center pin is an adjustable output terminal in a three-pin potentiometer. It is often called the wiper.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Conclusi\u00f3n\u00a0<\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">A potentiometer is a reliable tool, but you must understand all of its components and know exactly how it works. Consider the proper configuration, use it correctly as a voltage divider or rheostat, and select appropriate resistance values to make the circuit systems more flexible. For proper wiring of a potentiometer, you must know the key steps and tips from our experts.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Are you looking for the PCB or related services?<\/span><span style=\"color: #008080;\"><a style=\"color: #008080;\" href=\"https:\/\/uetpcb.com\/es\/\"> <b>UETPCB<\/b><\/a><\/span><span style=\"font-weight: 400;\"> is a professional PCB manufacturer that delivers quality and after-sales support. We help design PCB prototypes and assemble different components. Contact our experts regarding your project right away!<\/span><\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Un potenci\u00f3metro es un dispositivo fundamental que resulta \u00fatil en numerosos circuitos y sistemas. Tanto si est\u00e1s dise\u00f1ando un amplificador de audio, calibrando un sensor, ajustando el brillo de un LED, controlando la velocidad de un motor o creando una interfaz de usuario anal\u00f3gica, un potenci\u00f3metro ofrece una forma eficaz y r\u00e1pida de controlar y ajustar los valores de corriente y tensi\u00f3n.   Sin embargo, el cableado\u2026<\/p>","protected":false},"author":6,"featured_media":10079,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-10199","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Wire a Potentiometer: Pinout, Voltage Divider Circuits, and PCB Design Tips - UETPCB<\/title>\n<meta name=\"description\" content=\"If you have installed the potentiometer for adjustable voltage and resistance, proper wiring is essential. We have discussed the factors. 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Read on!","og_url":"https:\/\/uetpcb.com\/es\/how-to-wire-a-potentiometer-pinout-voltage-divider-circuits-and-pcb-design-tips\/","og_site_name":"UETPCB","article_published_time":"2026-08-18T09:03:50+00:00","og_image":[{"width":1280,"height":960,"url":"https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-on-pcb.webp","type":"image\/webp"}],"author":"zfp","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"zfp","Tiempo de lectura":"8 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/uetpcb.com\/how-to-wire-a-potentiometer-pinout-voltage-divider-circuits-and-pcb-design-tips\/#article","isPartOf":{"@id":"https:\/\/uetpcb.com\/how-to-wire-a-potentiometer-pinout-voltage-divider-circuits-and-pcb-design-tips\/"},"author":{"name":"zfp","@id":"https:\/\/uetpcb.com\/#\/schema\/person\/34355dc7b8585db7603570610c803008"},"headline":"How to Wire a Potentiometer: Pinout, Voltage Divider Circuits, and PCB Design Tips","datePublished":"2026-08-18T09:03:50+00:00","mainEntityOfPage":{"@id":"https:\/\/uetpcb.com\/how-to-wire-a-potentiometer-pinout-voltage-divider-circuits-and-pcb-design-tips\/"},"wordCount":1645,"image":{"@id":"https:\/\/uetpcb.com\/how-to-wire-a-potentiometer-pinout-voltage-divider-circuits-and-pcb-design-tips\/#primaryimage"},"thumbnailUrl":"https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-on-pcb.webp","articleSection":["News"],"inLanguage":"es"},{"@type":"WebPage","@id":"https:\/\/uetpcb.com\/how-to-wire-a-potentiometer-pinout-voltage-divider-circuits-and-pcb-design-tips\/","url":"https:\/\/uetpcb.com\/how-to-wire-a-potentiometer-pinout-voltage-divider-circuits-and-pcb-design-tips\/","name":"How to Wire a Potentiometer: Pinout, Voltage Divider Circuits, and PCB Design Tips - UETPCB","isPartOf":{"@id":"https:\/\/uetpcb.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/uetpcb.com\/how-to-wire-a-potentiometer-pinout-voltage-divider-circuits-and-pcb-design-tips\/#primaryimage"},"image":{"@id":"https:\/\/uetpcb.com\/how-to-wire-a-potentiometer-pinout-voltage-divider-circuits-and-pcb-design-tips\/#primaryimage"},"thumbnailUrl":"https:\/\/uetpcb.com\/wp-content\/uploads\/2025\/12\/potentiometer-wiring-on-pcb.webp","datePublished":"2026-08-18T09:03:50+00:00","author":{"@id":"https:\/\/uetpcb.com\/#\/schema\/person\/34355dc7b8585db7603570610c803008"},"description":"If you have installed the potentiometer for adjustable voltage and resistance, proper wiring is essential. We have discussed the factors. 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