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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Breadboard Kit
Breadboard: 400/830 tie-points. Jumpers: M-M, M-F. Common parts: resistors (¼W), LEDs, push buttons, potentiometer. Modules: LDR, buzzer, IR, PIR, relay. Power module: 3.3V/5V rails (optional).
Potentiometer 10k / 100k
Rotary/trim pot. Values: 10kΩ / 100kΩ. 3 pins (end A, wiper, end B). Variable voltage divider for ADC. Linear taper 'B'.
1K Ohm Rotary Potentiometer Round Shaft 3 Pin Elcon
[Potentiometer] 1KΩ Rotary Potentiometer Round Shaft Elcon The 1KΩ Rotary Potentiometer Round Shaft Elcon is a reliable 3-pin linear rotary potentiometer designed for adjusting electrical parameters such as voltage, current, brightness, motor speed, and other control functions in electronic circuits. By rotating the shaft, the resistance can be smoothly adjusted across its available range, making it suitable for a wide variety of DIY and electronic applications. With its compact 16mm body, 6mm round shaft, and through-hole mounting design, this potentiometer is easy to install on electronic PCBs and control panels. Its linear resistance characteristics make it suitable for applications such as LED brightness control, fan speed control, motor control, power supply adjustment, and general-purpose voltage control. ⭐ Key Features 1KΩ resistance value 3-pin rotary potentiometer Linear potentiometer Smooth rotary adjustment 6mm round shaft 10mm shaft length Compact 16mm body diameter Through-hole mounting Suitable for PCB and electronic circuits Ideal for voltage and resistance adjustment Suitable for DIY and electronic projects Elcon brand 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Resistance Value: 1KΩ Configuration: 3 Pin / Single Gang Tolerance: ±20% Shaft Type: Round Shaft Shaft Diameter: 6mm Shaft Length: 10mm Body Diameter / Width: 16mm Total Height: Approx. 25mm Mounting Type: Through Hole Operating Temperature: -40°C to +80°C Weight: Approx. 8g 🔧 Applications LED Brightness Control Fan Speed Control Motor Speed Control Voltage Adjustment Current Adjustment Power Supply Circuits Audio & Electronic Circuits Arduino Projects DIY Electronics Projects Electronic Prototyping 🛠️ How It Works A potentiometer is a variable resistor with three terminals. The two outer terminals are connected to the resistive track, while the center terminal acts as the wiper. Rotating the shaft changes the wiper position and therefore changes the resistance or output voltage in the circuit. 📦 Package Includes 1 × 1KΩ Rotary Potentiometer Round Shaft Elcon ⚠️ Note Product images are shown for illustrative purposes only and may differ slightly from the actual product. The 1KΩ value, tolerance, dimensions, and shaft length should be verified against the actual product batch before installation.
5K Ohms Rotary Potentiometer Round Shaft 3 Pin Elcon
[Potentiometer] 5KΩ Rotary Potentiometer Round Shaft Elcon The 5KΩ Rotary Potentiometer Round Shaft Elcon is a reliable 3-pin linear rotary potentiometer designed for adjusting electrical parameters such as voltage, current, brightness, motor speed, and other control functions in electronic circuits. By rotating the shaft, the resistance can be smoothly adjusted across its available range, making it suitable for a wide variety of DIY and electronic applications. With its compact 16mm body, 6mm round shaft, and through-hole mounting design, this potentiometer is easy to install on electronic PCBs and control panels. Its linear resistance characteristics make it suitable for applications such as LED brightness control, fan speed control, motor control, power supply adjustment, and general-purpose voltage control. ⭐ Key Features 5KΩ resistance value 3-pin rotary potentiometer Linear potentiometer Smooth rotary adjustment 6mm round shaft 13mm shaft length Compact 16mm body diameter Through-hole mounting Suitable for PCB and electronic circuits Ideal for voltage and resistance adjustment Suitable for DIY and electronic projects Elcon brand 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Resistance Value: 5KΩ Configuration: 3 Pin / Single Gang Tolerance: ±20% Shaft Type: Round Shaft Shaft Diameter: 6mm Shaft Length: 13mm Body Diameter / Width: 16mm Total Height: Approx. 28mm Mounting Type: Through Hole Operating Temperature: -40°C to +80°C Weight: Approx. 8g 🔧 Applications LED Brightness Control Fan Speed Control Motor Speed Control Voltage Adjustment Current Adjustment Power Supply Circuits Audio & Electronic Circuits Arduino Projects DIY Electronics Projects Electronic Prototyping 🛠️ How It Works A potentiometer is a variable resistor with three terminals. The two outer terminals are connected to the resistive track, while the center terminal acts as the wiper. Rotating the shaft changes the wiper position and therefore changes the resistance or output voltage in the circuit. 📦 Package Includes 1 × 5KΩ Rotary Potentiometer Round Shaft Elcon ⚠️ Note Product images are shown for illustrative purposes only and may differ slightly from the actual product. The 5KΩ value, tolerance, dimensions, and shaft length should be verified against the actual product batch
400W DC-DC Step-up Boost Converter Constant Current Power Supply Module LED Driver Step Up Module
[Step UP Buck Converter] This is a great 400W DC to DC step-up power supply module for electric equipment, digital products, laptop, etc. Input and output are designed with screw terminals for convenient wire connection and disconnection. High efficiency, the maximum conversion efficiency can be 96% and efficiency is related to input/output voltage, current and voltage difference. There are 2 heat sinks that would ensure a better heat dissipation. It can also be used as a driver for high power LED lights or voltage regulator for solar panels. Features: Input and output are designed with screw terminals for convenient wire connection and disconnection. High efficiency, the maximum conversion efficiency can be 96% and efficiency is related to input/output voltage, current and voltage difference. There are 2 heat sinks that would ensure a better heat dissipation. It can also be used as a driver for high power LED lights or voltage regulator for solar panels. Output Voltage/Current Adjustment: Adjust "CV-ADJ" potentiometer clockwise to reduce voltage, counterclockwise to increase voltage. Adjust "CC-ADJ" potentiometer counterclockwise about 30 circles to minimize the output current before connecting to load(clockwise to increase current, counterclockwise to reduce current). Then adjust "CC-ADJ" clockwise to the current value you need. If you use the module for battery charging, connect to output after battery is fully discharged. Because if the more energy is left in battery, the less charging current will be. Specification: Input Voltage: DC 8.5V to 50V Output Voltage: DC 10V to 60V Max. Input Current: 15A Max. Output Current: 12A Quiescent Current: 10mA Constant Current Range: 0.2A to 12A Operating Temperature: -40° to 85° Package Included: 1 x Boost Module 400W DC-DC Step-up Boost Converter Constant Current Power Supply Module 15A Step-Up LED Driver
100K Rotary Potentiometer Round Shaft Elcon
[Potentiometer] 100KΩ Rotary Potentiometer Round Shaft Elcon The 100KΩ Rotary Potentiometer Round Shaft Elcon is a reliable 3-pin linear rotary potentiometer designed for adjusting electrical parameters such as voltage, current, brightness, motor speed, and other control functions in electronic circuits. By rotating the shaft, the resistance can be smoothly adjusted across its available range, making it suitable for a wide variety of DIY and electronic applications. With its compact 16mm body, 6mm round shaft, and through-hole mounting design, this potentiometer is easy to install on electronic PCBs and control panels. Its linear resistance characteristics make it suitable for applications such as LED brightness control, fan speed control, motor control, power supply adjustment, and general-purpose voltage control. ⭐ Key Features 100KΩ resistance value 3-pin rotary potentiometer Linear potentiometer Smooth rotary adjustment 6mm round shaft 13mm shaft length Compact 16mm body diameter Through-hole mounting Suitable for PCB and electronic circuits Ideal for voltage and resistance adjustment Suitable for DIY and electronic projects Elcon brand 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Resistance Value: 100KΩ Configuration: 3 Pin / Single Gang Tolerance: ±20% Shaft Type: Round Shaft Shaft Diameter: 6mm Shaft Length: 13mm Body Diameter / Width: 16mm Total Height: Approx. 28mm Mounting Type: Through Hole Operating Temperature: -40°C to +80°C Weight: Approx. 8g 🔧 Applications LED Brightness Control Fan Speed Control Motor Speed Control Voltage Adjustment Current Adjustment Power Supply Circuits Audio & Electronic Circuits Arduino Projects DIY Electronics Projects Electronic Prototyping 🛠️ How It Works A potentiometer is a variable resistor with three terminals. The two outer terminals are connected to the resistive track, while the center terminal acts as the wiper. Rotating the shaft changes the wiper position and therefore changes the resistance or output voltage in the circuit. 📦 Package Includes 1 × 100KΩ Rotary Potentiometer Round Shaft Elcon ⚠️ Note Product images are shown for illustrative purposes only and may differ slightly from the actual product. The 100KΩ value, tolerance, dimensions, and shaft length should be verified against the actual product batch before installation.
10K Rotary Potentiometer Round Shaft 3Pin Elcon
[Potentiometer] 10KΩ Rotary Potentiometer Round Shaft Elcon The 10KΩ Rotary Potentiometer Round Shaft Elcon is a reliable 3-pin variable resistor designed for adjusting electrical parameters such as voltage, current, brightness, motor speed, and other control functions in electronic circuits. By rotating the shaft, the resistance can be smoothly adjusted across its available range, making it suitable for a wide variety of DIY and electronic applications. With its compact 16mm body, 6mm round shaft, and through-hole mounting design, this potentiometer is easy to install on electronic PCBs and control panels. The linear resistance characteristics make it particularly suitable for applications such as LED brightness control, fan speed control, motor control, and general-purpose voltage adjustment. ⭐ Key Features 10KΩ resistance value 3-pin rotary potentiometer Linear potentiometer Smooth rotary adjustment 6mm round shaft Compact 16mm body diameter Through-hole mounting Suitable for PCB and electronic circuits Useful for voltage and current adjustment Suitable for LED, fan and motor control applications Elcon brand 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Resistance Value: 10KΩ Configuration: 3 Pin / Single Gang Tolerance: ±20% Shaft Type: Round Shaft Shaft Diameter: 6mm Shaft Length: 13mm Body Diameter / Width: 16mm Total Height: 30mm Mounting Type: Through Hole Operating Temperature: -40°C to +80°C Weight: Approx. 8g 🔧 Applications LED Brightness Control Fan Speed Control Motor Speed Control Voltage Adjustment Current Adjustment Power Supply Circuits Arduino Projects DIY Electronics Projects Audio & Electronic Circuits Electronic Prototyping 🛠️ How It Works A potentiometer is a variable resistor with three terminals. The two outer terminals are connected to the resistive track, while the center terminal acts as the wiper. Rotating the shaft changes the wiper position and therefore changes the resistance or output voltage in the circuit. 📦 Package Includes 1 × 10KΩ Rotary Potentiometer Round Shaft Elcon ⚠️ Note Product images are shown for illustrative purposes only and may differ slightly from the actual product. The 10KΩ value and ±20% tolerance are based on the supplied product specifications.
NY-D01 100A Digital Display Spot Welding Controller Board
[Spot Welding Parts] The principle of silicon-controlled phase shifting triggering is adopted to adjust the time and the current to achieve welding. With a digital display, you can directly see the time and current. Optocoupler isolates the strong and weak electricity, making the operation safer. Using a high-precision single potentiometer to ensure reliable and convenient input. The design of a reliable zero-crossing detection circuit ensures the SCR phase shift accuracy. Made of high-quality PCB, the control board is long-lasting. The module is 8cm long, 6cm wide, and 2cm high. It is developed for DIY or simple resistance welding. Features: 1 The use of STM8 industrial control center microcontroller. 2 Strong and weak electricity through optocoupler insulation, safe operation. 3 The power line and foot switch line adopts the bolt the quick connect terminal, more convenient and reliable. 4 Input time, current using a high-precision simple potentiometer, to ensure reliable, convenient input 5 On-board power supply, state, foot, trigger indicator, work status clearly visible. 6 The design of reliable zero-crossing detection circuit to ensure that the SCR phase shift accuracy. 7 The controller is compatible with 100A scr. 8 Digital control interface, you can display the current time and current settings. 9 Input time of 1-50, cycle unit (1 cycles is 20 ms), current input (30-99%), Material Plastic+Metal Current Input 30-99% Microcontroller. STM8 Time input 1-50 Shipping Weight 0.12 kg Shipping Dimensions 8 × 6 × 2 cm Package Includes: 1 x NY-D01 100A Digital Display Spot Welding Controller Board
MQ-2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module
[Gas and Dust Sensor] MQ-2 Gas Sensor Module The MQ-2 Smoke LPG Butane Hydrogen Gas Sensor Detector Module is useful for gas leakage detection (home and industry). It is suitable for detecting H2, LPG, CH4, CO, Alcohol, Smoke, or Propane. Due to its high sensitivity and fast response time, measurements can be taken as soon as possible. The sensitivity of the sensor can be adjusted by the potentiometer MQ-2 gas sensor using gas-sensitive material is to be clean air in the lower conductivity of tin oxide (SnO2). When the sensor when flammable gases are present in the environment in which the conductivity of the sensor with an increasing concentration of combustible gas in the air increases. Package Includes: 1 x MQ2 Gas Sensor Module
NE5532 2.1 Channel Tone Preamplifier Board Audio Equalizer Subwoofer Preamp Tone Control Bass Pre Amplifier DC10-24V
[Amplifier Board] Product Introduction The product innovation uses a single power supply, which can share power with the power amplifier board. It is very convenient to use NE5532 as the operational amplifier. The operational amplifier IC base is welded to facilitate the replacement of the operational amplifier, and improve the playability. All CBB capacitors are Philips capacitors, and Potentiometer are high-quality platform produced sealed Potentiometer. You can check our others amplifier boards here. Product parameters Product name: 2.1 channel front stage board Frequency adjustment range: 22Hz-300Hz Power supply voltage: DC10-24V Operational amplifier model: NE5532 Board size: 82x30mm Number of channels: single/dual channel input possible Board thickness: 1.6mm Audio input: onboard terminal Centre-to-centre distance of Potentiometer: 3cm * 3cm
1K Ohm Linear Taper 16mm Rotary Potentiometer Elcon
[Potentiometer] Elcon B1K 1KΩ 16mm Rotary Potentiometer – 3 Pin D-Type Shaft The Elcon B1K 1KΩ Rotary Potentiometer is a compact 3-pin linear taper potentiometer designed for adjusting voltage, resistance, tone, brightness, speed, and other electrical parameters in electronic circuits. It has a total resistance of 1KΩ, with the resistance distributed linearly across the rotation of the shaft. The potentiometer can be used as a variable resistor or as a variable voltage divider. The two outer pins provide the full resistance value, while the center pin acts as the wiper and provides an adjustable resistance or voltage depending on the circuit connection. Its D-type shaft provides a secure grip for a compatible knob, while the included nut allows the potentiometer to be securely fixed to a panel or enclosure. The compact 16mm body makes it suitable for PCB and general-purpose electronic applications. ⭐ Key Features 1KΩ total resistance B1K linear taper 3-pin configuration D-type shaft Compact 16mm potentiometer Includes fixing nut Suitable for PCB mounting Can be used as a variable resistor Can be used as a variable voltage divider Suitable for tone and electronic control applications Breadboard compatible according to the supplied specifications 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Potentiometer Value: B1K / 1KΩ Taper: Linear Number of Pins: 3 Shaft Type: D-Type Shaft Diameter: 4mm Shaft Length: 8–10mm Pins Pitch: 4.4mm Dimensions: 25mm × 16mm × 16mm Nut Inner Diameter: 6mm Nut Outer Diameter: 10mm Mounting: PCB / Panel Mount Breadboard Compatible: Yes 🔌 Pin Function Outer Pin 1: Resistive track terminal Center Pin: Wiper / Variable output Outer Pin 3: Resistive track terminal The resistance between the two outer pins remains approximately 1KΩ, while the resistance between the center pin and either outer pin changes as the shaft is rotated. 🔧 Applications Tone Control Audio Circuits Volume & Signal Adjustment LED Brightness Control Motor Speed Control Voltage Adjustment Variable Resistor Applications Arduino Projects DIY Electronics Projects PCB Prototyping General Electronic Control Circuits 🛠️ How It Works When used as a potentiometer, the center pin acts as the adjustable wiper and can provide a variable output across the rotation range. When used as a variable resistor, the wiper can be connected with one of the outer terminals to obtain an adjustable resistance. 📦 Package Includes 1 × Elcon B1K 1KΩ 3-Pin Rotary Potentiometer 1 × Fixing Nut ⚠️ Note Product images are for illustrative purposes only and may differ slightly from the actual product. The supplied specifications state a shaft length of 8–10mm; please verify the exact dimensions against the available product batch before installation.
100K Ohm Linear Taper 16mm Rotary Potentiometer Elcon
[Potentiometer] Elcon B100K 100KΩ 16mm Rotary Potentiometer – 3 Pin D-Type Shaft The Elcon B100K 100KΩ Rotary Potentiometer is a compact 3-pin linear taper potentiometer designed for adjusting voltage, resistance, signal levels, brightness, motor speed, and other electrical parameters in electronic circuits. It has a total resistance of 100KΩ, with the resistance distributed linearly across the rotation of the shaft. The potentiometer can be used as a variable resistor or as a variable voltage divider. The two outer pins provide the full resistance value, while the center pin acts as the wiper and provides an adjustable resistance or voltage depending on the circuit connection. Its D-type shaft provides a secure grip for a compatible knob, while the included nut allows the potentiometer to be securely fixed to a panel or enclosure. The compact 16mm body makes it suitable for PCB and general-purpose electronic applications. ⭐ Key Features 100KΩ total resistance B100K linear taper 3-pin configuration D-type shaft Compact 16mm potentiometer Includes fixing nut Suitable for PCB mounting Can be used as a variable resistor Can be used as a variable voltage divider Suitable for tone and electronic control applications Breadboard compatible according to the supplied specifications 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Potentiometer Value: B100K / 100KΩ Taper: Linear Number of Pins: 3 Shaft Type: D-Type Shaft Diameter: 4mm Shaft Length: 8–10mm Pins Pitch: 4.4mm Dimensions: 25mm × 16mm × 16mm Nut Inner Diameter: 6mm Nut Outer Diameter: 10mm Mounting: PCB / Panel Mount Breadboard Compatible: Yes 🔌 Pin Function Outer Pin 1: Resistive track terminal Center Pin: Wiper / Variable output Outer Pin 3: Resistive track terminal The resistance between the two outer pins remains approximately 100KΩ, while the resistance between the center pin and either outer pin changes as the shaft is rotated. 🔧 Applications Tone Control Audio Circuits Signal Level Adjustment LED Brightness Control Motor Speed Control Voltage Adjustment Variable Resistor Applications Arduino Projects DIY Electronics Projects PCB Prototyping General Electronic Control Circuits 🛠️ How It Works When used as a potentiometer, the center pin acts as the adjustable wiper and provides a variable output across the rotation range. When used as a variable resistor, the wiper can be connected with one of the outer terminals to obtain an adjustable resistance. 📦 Package Includes 1 × Elcon B100K 100KΩ 3-Pin Rotary Potentiometer 1 × Fixing Nut ⚠️ Note Product images are for illustrative purposes only and may differ slightly from the actual product. The supplied specifications state a shaft length of 8–10mm; please verify the exact dimensions against the actual product batch before installation.
5K Ohm Linear Taper 16mm Rotary Potentiometer-Elcon
[Potentiometer] Elcon B5K 5KΩ 16mm Rotary Potentiometer – 3 Pin D-Type Shaft The Elcon B5K 5KΩ Rotary Potentiometer is a compact 3-pin linear taper potentiometer designed for adjusting voltage, resistance, tone, brightness, motor speed, and other electrical parameters in electronic circuits. It has a total resistance of 5KΩ, with the resistance distributed linearly across the rotation of the shaft. The potentiometer can be used as a variable resistor or as a variable voltage divider. The two outer pins provide the full resistance value, while the center pin acts as the wiper and provides an adjustable resistance or voltage depending on the circuit connection. Its D-type shaft provides a secure grip for a compatible knob, while the included nut allows the potentiometer to be securely fixed to a panel or enclosure. The compact 16mm body makes it suitable for PCB and general-purpose electronic applications. ⭐ Key Features 5KΩ total resistance B5K linear taper 3-pin configuration D-type shaft Compact 16mm potentiometer Includes fixing nut Suitable for PCB mounting Can be used as a variable resistor Can be used as a variable voltage divider Suitable for tone and electronic control applications Breadboard compatible according to the supplied specifications 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Potentiometer Value: B5K / 5KΩ Taper: Linear Number of Pins: 3 Shaft Type: D-Type Shaft Diameter: 4mm Shaft Length: 8–10mm Pins Pitch: 4.4mm Dimensions: 25mm × 16mm × 16mm Nut Inner Diameter: 6mm Nut Outer Diameter: 10mm Mounting: PCB / Panel Mount Breadboard Compatible: Yes 🔌 Pin Function Outer Pin 1: Resistive track terminal Center Pin: Wiper / Variable output Outer Pin 3: Resistive track terminal The resistance between the two outer pins remains approximately 5KΩ, while the resistance between the center pin and either outer pin changes as the shaft is rotated. 🔧 Applications Tone Control Audio Circuits Volume & Signal Adjustment LED Brightness Control Motor Speed Control Voltage Adjustment Variable Resistor Applications Arduino Projects DIY Electronics Projects PCB Prototyping General Electronic Control Circuits 🛠️ How It Works When used as a potentiometer, the center pin acts as the adjustable wiper and provides a variable output across the rotation range. When used as a variable resistor, the wiper can be connected with one of the outer terminals to obtain an adjustable resistance. 📦 Package Includes 1 × Elcon B5K 5KΩ 3-Pin Rotary Potentiometer 1 × Fixing Nut ⚠️ Note Product images are for illustrative purposes only and may differ slightly from the actual product. The supplied specifications state a shaft length of 8–10mm; please verify the exact dimensions against the actual product batch before installation.
10K Ohm Linear Taper 16mm Rotary Potentiometer Elcon
[Potentiometer] Elcon B10K 10KΩ 16mm Rotary Potentiometer – 3 Pin D-Type Shaft The Elcon B10K 10KΩ Rotary Potentiometer is a compact 3-pin linear taper potentiometer designed for adjusting voltage, resistance, tone, brightness, motor speed, and other electrical parameters in electronic circuits. It has a total resistance of 10KΩ, with the resistance distributed linearly across the rotation of the shaft. The potentiometer can be used as a variable resistor or as a variable voltage divider. The two outer pins provide the full resistance value, while the center pin acts as the wiper and provides an adjustable resistance or voltage depending on the circuit connection. Its D-type shaft provides a secure grip for a compatible knob, while the included nut allows the potentiometer to be securely fixed to a panel or enclosure. The compact 16mm body makes it suitable for PCB and general-purpose electronic applications. ⭐ Key Features 10KΩ total resistance B10K linear taper 3-pin configuration D-type shaft Compact 16mm potentiometer Includes fixing nut Suitable for PCB mounting Can be used as a variable resistor Can be used as a variable voltage divider Suitable for tone and electronic control applications Breadboard compatible according to the supplied specifications 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Potentiometer Value: B10K / 10KΩ Taper: Linear Number of Pins: 3 Shaft Type: D-Type Shaft Diameter: 4mm Shaft Length: 8–10mm Pins Pitch: 4.4mm Dimensions: 25mm × 16mm × 16mm Nut Inner Diameter: 6mm Nut Outer Diameter: 10mm Mounting: PCB / Panel Mount Breadboard Compatible: Yes 🔌 Pin Function Outer Pin 1: Resistive track terminal Center Pin: Wiper / Variable output Outer Pin 3: Resistive track terminal The resistance between the two outer pins remains approximately 10KΩ, while the resistance between the center pin and either outer pin changes as the shaft is rotated. 🔧 Applications Tone Control Audio Circuits Volume & Signal Adjustment LED Brightness Control Motor Speed Control Voltage Adjustment Variable Resistor Applications Arduino Projects DIY Electronics Projects PCB Prototyping General Electronic Control Circuits 🛠️ How It Works When used as a potentiometer, the center pin acts as the adjustable wiper and provides a variable output across the rotation range. When used as a variable resistor, the wiper can be connected with one of the outer terminals to obtain an adjustable resistance. 📦 Package Includes 1 × Elcon B10K 10KΩ 3-Pin Rotary Potentiometer 1 × Fixing Nut ⚠️ Note Product images are for illustrative purposes only and may differ slightly from the actual product. The supplied specifications state a shaft length of 8–10mm; please verify the exact dimensions against the actual product batch before installation.
100K 16mm Linear Taper 6-Pin Dual Gang Rotary Potentiometer
[Potentiometer] The 100K 16mm Linear Taper Dual Gang Rotary Potentiometer is a precision variable resistor designed for accurate voltage and signal adjustment in audio, electronic, and industrial applications. Its dual-gang construction enables two separate circuits to be controlled simultaneously using a single rotating shaft, making it ideal for stereo volume control and dual-channel signal adjustment. Manufactured with high-quality resistive elements and durable metal components, the potentiometer delivers smooth rotation, low noise operation, excellent linearity, and long mechanical life. The 16mm body size provides a compact solution suitable for PCB mounting in amplifiers, mixers, DIY audio systems, control panels, and electronic equipment. The 100KΩ linear taper provides uniform resistance variation throughout the rotation angle, making it suitable for voltage dividers, signal attenuation, and control circuits where linear response is required. With a standard knurled shaft and 6 solder terminals, this potentiometer is easy to install and compatible with a wide variety of control knobs and electronic projects. 🔹 Key Features Dual gang rotary potentiometer 100KΩ linear taper resistance Smooth and precise rotation 16mm compact body 6-pin solder terminal design Low noise operation Long mechanical life Durable metal shaft Easy PCB mounting Suitable for stereo audio control 🔹 Technical Specifications Product Type: Dual Gang Rotary Potentiometer Resistance Value: 100KΩ Taper Type: Linear (B100K) Number of Gangs: Dual Number of Pins: 6 Body Diameter: 16mm Shaft Type: Knurled Metal Shaft Shaft Diameter: 6mm Shaft Length: Approx. 15mm Rotation Angle: Approx. 300° Mounting Type: PCB Through Hole Terminal Type: Solder Pins Power Rating: 0.125W (Typical) Resistance Tolerance: ±20% Operating Temperature: -10°C to +70°C 🔹 Applications Suitable for: Audio amplifiers Stereo volume control Tone control circuits Audio mixers Power amplifiers DIY electronics Signal level adjustment Voltage divider circuits Instrumentation equipment Electronic control panels 🔹 Package Includes 1 × 100K 16mm Linear Taper 6-Pin Dual Gang Rotary Potentiometer
10K Ohm 16mm Linear Taper 6-Pin Dual Gang Rotary Potentiometer
[Potentiometer] 16mm 10KΩ 6-Pin Dual-Gang Rotary Potentiometer The 16mm 10KΩ 6-Pin Rotary Potentiometer is a compact and versatile dual-gang rotary potentiometer designed to control two separate electrical channels simultaneously using a single rotary shaft. With 6 pins in total, each potentiometer section has 3 terminals, making it suitable for stereo audio control, dual-channel signal adjustment, amplifier circuits, tone control, and various DIY electronics applications. By rotating the shaft, the resistance of each potentiometer section can be adjusted smoothly. The dual-gang construction allows both channels to be controlled together, making this potentiometer particularly useful for stereo volume control and other applications requiring synchronized adjustment. ⭐ Key Features 10KΩ resistance value 16mm body diameter 6-pin dual-gang configuration 3 pins per potentiometer section Single rotary shaft controls both gangs Smooth and reliable rotary operation Compact design Suitable for PCB and panel mounting Ideal for stereo and dual-channel applications Suitable for audio and general electronic circuits Compatible with suitable potentiometer knobs 📋 Technical Specifications Product Type: Rotary Potentiometer Resistance Value: 10KΩ Body Diameter: 16mm Configuration: Dual Gang Number of Pins: 6 Pins per Gang: 3 Operation: Single Turn Rotary Shaft Length: 9mm Total Potentiometer Height: 27mm Mounting Type: PCB / Panel Mount Application: Variable Resistance / Voltage Control 🔌 Pin Configuration The potentiometer has 6 pins in total, divided into two independent 3-pin sections: Pins 1, 2 & 3: First potentiometer section Pins 4, 5 & 6: Second potentiometer section Each section consists of two resistive-track terminals and one center wiper terminal. Rotating the shaft moves the wiper and changes the resistance or output voltage. 🔧 Applications Stereo Audio Volume Control Audio Amplifiers Tone Control Circuits Pre-Amplifier Circuits Dual-Channel Signal Adjustment LED Brightness Control Motor Speed Control Power Supply Adjustment 555 Timer Circuits Arduino Projects ESP32 Projects DIY Electronics Projects Audio Equipment Electronic Prototyping 🛠️ How to Use The two outer terminals of each potentiometer section can be connected across the required voltage or signal path, while the center terminal works as the adjustable wiper output. In stereo audio applications, one gang can be used for the left channel and the other gang for the right channel, allowing both channels to be adjusted simultaneously. 📦 Package Includes 1 × 16mm 10KΩ 6-Pin Dual-Gang Rotary Potentiometer ⚠️ Precautions Check the pin configuration before connecting the potentiometer. Do not exceed the electrical limits of the connected circuit. Ensure correct wiring when using both gangs for stereo applications. Use a suitable knob compatible with the shaft. The exact taper and shaft shape may vary depending on the product variant.
47K 16mm Linear Taper 6-Pin Dual Gang Rotary Potentiometer
[Potentiometer] The 47K 16mm Linear Taper Dual Gang Rotary Potentiometer is a high-quality variable resistor designed for precise voltage and signal adjustment in audio and electronic circuits. Its dual-gang construction allows simultaneous control of two independent channels using a single shaft, making it perfect for stereo volume and tone control applications. Equipped with a D-cut metal shaft, the potentiometer provides a secure fit for compatible control knobs, preventing slippage during operation. The 47KΩ linear resistance offers uniform resistance change across the entire rotation angle, making it suitable for signal control, voltage divider circuits, and industrial electronic equipment. Built with high-quality resistive elements and durable metal contacts, it delivers smooth rotation, low noise, excellent stability, and a long mechanical life. The compact 16mm body and 6-pin PCB mounting design allow easy installation in amplifiers, mixers, control panels, and DIY electronic projects. 🔹 Key Features Dual gang rotary potentiometer 47KΩ linear taper (B47K) D-cut metal shaft 6-pin PCB mounting Smooth and precise rotation Low noise operation Long mechanical life Compact 16mm body Durable construction Ideal for stereo audio applications 🔹 Technical Specifications Product Type: Dual Gang Rotary Potentiometer Resistance Value: 47KΩ Taper Type: Linear (B47K) Number of Gangs: Dual Number of Pins: 6 Body Diameter: 16mm Shaft Type: D-Cut Metal Shaft Shaft Diameter: 6mm Shaft Length: Approx. 15mm Rotation Angle: Approx. 300° Mounting Type: PCB Through Hole Terminal Type: Solder Pins Power Rating: 0.125W (Typical) Resistance Tolerance: ±20% Operating Temperature: -10°C to +70°C 🔹 Applications Suitable for: Stereo audio amplifiers Volume control circuits Tone control circuits Audio mixers Home audio systems DIY electronics Signal level adjustment Voltage divider circuits Instrumentation equipment Electronic control panels 🔹 Package Includes 1 × 47K 16mm Linear Taper Dual Gang Rotary Potentiometer with D-Cut Shaft
NY-D01 40A Digital Display Spot Welding Controller Board
[Spot Welding Parts] This is a NY-D01 40A Digital Display Spot Welding Controller Board. The principle of silicon controlled phase shifting triggering is adopted to adjust the time and the current to achieve welding. With a digital display, you can directly see the time and current. Optocoupler isolates the strong and weak electricity, making the operation safer. Using a high-precision single potentiometer to ensure reliable and convenient input. The design of a reliable zero-crossing detection circuit ensures the SCR phase shift accuracy. Made of high-quality PCB, the control board is long-lasting. The module is 8cm long, 6cm wide and 2cm high. It is developed for DIY or simple resistance welding. Connection Diagram: Features: 1 The use of STM8 industrial control centre microcontroller. 2 Strong and weak electricity through optocoupler insulation, safe operation. 3 The power line and footswitch line adopts the bolt the quick connect terminal, more convenient and reliable. 4 Input time, current using a high-precision simple potentiometer, to ensure reliable, convenient input 5 On-board power supply, state, foot, trigger indicator, work status clearly visible. 6 The design of a reliable zero-crossing detection circuit to ensure that the SCR phase shift accuracy. 7 The controller is compatible with 40A SCR. 8 Digital control interface, you can display the current time and current settings. 9 Input time of 1-50, cycle unit (1 cycles is 20 ms), current input (30-99%), Package Includes: 1 x NY-D01 40A Digital Display Spot Welding Controller Board
Flame Sensor infrared Receiver Ignition source detection module
[Flame Sensor, Sensors] This tiny Flame sensor infrared receiver module ignition source detection module is Arduino compatible can use to detect flame or wavelength of the light source within 760nm~1100nm also useful for Lighter flame detect at the distance 80cm. Greater the flame, farther the test distance. It has the Detect angle of 60° and very sensitive to flame spectrum. It produces the one channel output signal at the D0 terminal for further processing like an alarm system or any switching system. The sensitivity is adjustable with the help of blue potentiometer given on the board. Features : Indicator light: a green one for the switch, a red one for power. Built in a potentiometer for sensitivity control. Onboard signal output indication, output effective signal is high, at the same time the indicator light up, the output signal can directly connect to microcontroller IO. Can detect fire or wavelength in 760 ~ 1100 nm nano within the scope of the light source. Detection angle about 60 degrees, the flame spectrum especially sensitive. The flame of the most sensitive sensors flame, the regular light is also a response, generally used for fire alarm purposes. Package Includes : 1 x Flame sensor infrared receiver module ignition source detection module
Vibration sensor module alarm Motion sensor module vibration switch SW-420
[Vibration Sensor] Vibration sensor module alarm Motion sensor module vibration switch SW-420 module based on the vibration sensor SW-420 and Comparator LM393 to detect if there is any vibration that beyond the threshold. The threshold can adjust using an onboard potentiometer. When this no vibration, this module output logic LOW the signal indicates LED light, and vice versa. If the module does not vibrate, the vibration switch was on the close state, the output of low output, the green indicator light. The product vibrates, vibration switches momentary disconnect, the output is driven high, the green light does not shine. The output can connect to the microcontroller, which to detect high and low level; so as to detect whether the environment exists vibration, play a role in the alarm. Note: Do not reverse the power directions, otherwise, it is possible to burn the chip. Signal LED light is output Low, signal LED OFF output is High. The output level close to the input voltage. Features : Using SW-420 normally closed type vibration sensor. Comparator output, clean signal, good waveform, strong driving ability, >15mA. Using a wide voltage LM393 comparator. With bolt holes for easy installation. Package Includes : 1 x Vibration sensor module alarm Motion sensor module vibration switch SW-420.
Out of stockTCRT5000 DUAL LINE TRACKING SENSOR MODULE
[IR and PIR Sensors] This IR reflective sensor Module TCRT5000 IR Sensor is used to detect colour and distance. This sensor module consists on an IR transmitter & an IR receiver. IR Transmitter continuously emits IR signal which is then reflected by an obstacle and is then detected by the IR receiver. TCRT5000 Infrared Reflective Sensor Module is often used in line following robots ,object sorting Robot because this module can sense if a surface is white or black. The measuring distance range from 1mm to 8mm, and the central point is about 2.5mm. There is also an on-board potentiometer to adjust the sensitivity. The infrared diode will emitting the infrared continually when the module is powered ON, when the emitted infrared light has not been reflected or the strength is not big enough, the receiver diode will in the off state and output pin i.e. DO will be LOW. Description of Line Tracking sensor TCRT5000L:- Main chip: LM393, Designed with reflected infrared sensor, indicator light. Built in a potentiometer for sensitivity control. On-board LM393 voltage comparator chip and infrared sensing probe TCRT5000L Support 5 V / 3.5 V voltage input On-board signal output instructions, output is high effective signal at the same time, the indicator lamp light output signal can be directly and single-chip microcomputer IO connection & mid dot; Signal detection sensitivity can adjust Reserve all the way more circuits (P3 voltage drawn) using TCRT5000 infrared reflection sensor test reflection distance: 1 mm to 25 mm Operation voltage: 3.5v-5V Operation current: >15mA wide voltage LM393 comparator output form: digital switch output (0 and 1) a fixed bolt hole, convenient installation. Features of Line Tracking sensor TCRT5000:- Product Name : Infrared Obstacle Avoidance Sensor Module; Module Model : TCRT5000; Working Voltage : DC 3.5-5V Output Channel : 0/1; Detect Distance : 1-25mm; Focal Distance : 2.5mm Chipset : LM393; PCB Size : 32 x 14mm/1.3″ x 0.55″ (L*W) Total Size : 38 x 14 x 18mm/1.5″ x 0.55″ x 0.7″(L*W*H); Material : Electric Part Package Content : 1 x Infrared Obstacle Avoidance Sensor Module
IIC/I2C Serial Interface Adapter Module ( Made In India)
[LED/LCD Display Module] This is a RoHS compliant I2C Serial LCD Daughter board that can be connected to a standard 16×2 or 20×4 Character Display Module that supports 4-bit mode. All Character Modules sold on our site support 4-bit mode, and nearly all commercially available 16×2 and 20×4 line character modules support it too. This board has a PCF8574 I2C chip that converts I2C serial data to parallel data for the LCD display. There are many examples on the internet for using this board with Arduino. Do a search for “Arduino LCD PCF8574“. The I2C address is 0x3F by default, but this can be changed via 3 solder jumpers provided on the board. This allows up to 3 LCD displays to be controlled via a single I2C bus (giving each one it’s own address) Specifications and Features: 5V power supply. Serial I2C control of LCD display using PCF8574. Backlight can be enabled or disabled via a jumper on the board. Contrast control via a potentiometer. Can have 8 modules on a single I2C bus (change address via solder jumpers)address, allowing. Size ：41.6 x 19.2 mm. Package Includes: 1 x IIC/I2C Serial Interface Adapter Module
MQ-5 Methane LPG Liquid Propane Gas Sensor Module
[Gas and Dust Sensor] The Simple MQ-5 Methane LPG Liquid Propane Gas Sensor Module is a great way to add basic gas sensing to your project at a reasonable price. TheMQ-5 Methane LPG Liquid Propane Gas Sensor Module particulate sensor uses a Buzzer to sense any detected material that is even present in the air! This MQ-5 Methane LPG Liquid Propane Gas Sensor Module is widely used in gas leakage detecting pieces of equipment in family and industry, are suitable for detecting LPG, natural gas, town gas, avoid the noise of alcohol and cooking fumes and cigarette smoke The MQ5 ( MQ-5 ) is used in gas leakage detecting equipment in consumer and industry applications, this sensor is suitable for detecting LPG, natural gas, coal gas. Avoid the noise of alcohol, cooking fumes, and cigarette smoke. The sensitivity can be adjusted by the potentiometer. The sensitive material of the MQ-5 gas sensor is tin Oxide (SnO2), which with lower conductivity in clean air. When the target combustible gas exists, The sensor’s conductivity is higher along with the gas concentration rising. Please use a simple electro circuit, Convert the change of conductivity to the corresponding output signal of gas concentration. MQ-5 gas sensor has a high sensitivity to Methane, Propane, and Butane, and could be used to detect both Methane and Propane. The sensor could be used to detect different combustible gas especially Methane, it is with low cost and suitable for different application Connections VCC ↔ 2.5V ~ 5.0V GND ↔ ground Aout ↔ MCU.IO (analog output) Dout ↔ MCU.IO (digital output) Note: Buzzer is not included in this package, you have to buy it separately. Features : High sensitivity to LPG, natural gas, town gas. Small sensitivity to alcohol, smoke. Stable and long life. Simple drive circuit. Fast response. Package Includes : 1 x MQ-5 Methane LPG Liquid Propane Gas Sensor Module
250W High Power Constant voltage Current Adjustable Aluminum Substrate LED Driver Module
[Step UP Buck Converter] The 250W High Power DC-DC Boost Converter with Constant Voltage & Constant Current Control is a versatile and efficient power module designed for demanding applications such as LED driving, battery charging, and power supply systems. Built on an aluminum substrate for superior heat dissipation, this module ensures stable performance even under high load conditions. It supports adjustable output voltage (10V–50V) and current control up to 6A (10A peak), making it ideal for precision applications. With high efficiency up to 96%, premium components, and dual potentiometer control, this module delivers reliable and customizable power output for both hobbyists and professionals. Key Features ⚡ High Power Output (Up to 250W)Supports high-power applications with stable voltage and current control. 🔧 Adjustable Voltage & CurrentFine-tune output using onboard multi-turn potentiometers for accurate control. 🔥 Aluminum Substrate Heat DissipationIntegrated heat sink design ensures continuous operation under heavy load. 📈 High Efficiency (92%–96%)Minimizes power loss and improves system performance. 🧠 Stable Constant Current OutputLow temperature drift (<1%) ensures reliable performance for LED applications. 🔌 Wide Application SupportSuitable for LED drivers, battery charging, solar systems, and DIY power supplies. Specifications Specification Description Module Type Non-Isolated Boost Converter Output Voltage 10V – 50V (Adjustable) Output Current Up to 6A (10A peak) Constant Current Range 0.2A – 6A Output Power Up to 250W Efficiency 92% – 96% Input Voltage 10V – 40V Static Current 10mA Mounting 4 × 3mm Screw Holes Cooling Aluminum Substrate Applications 💡 High Power LED Driver🔋 Battery Charging (Li-ion, Lead Acid, etc.)☀️ Solar Power Regulation🚗 Vehicle Power Supply Systems🔧 DIY Adjustable Power Supply💻 Laptop & Portable Device Power Usage Instructions Connect VIN+ / VIN- to input power supply Connect OUT+ / OUT- to load Adjust RV1 (Voltage) as per requirement Adjust RV2 (Current) based on load ⚠️ Always set voltage/current before connecting load Precautions Do not reverse input/output polarity Ensure proper heat dissipation at high load Input voltage must be at least 2V lower than output Avoid exceeding maximum current/power limits Do not adjust current using short circuit method Package Includes 1 × 250W High Power DC-DC Boost Converter Constant Voltage & Current Module